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Index Rodent

Rodents (from Latin rodere, "to gnaw") are mammals of the order Rodentia, which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. [1]

388 relations: Adaptive radiation, Aeration, Age of Discovery, Agouti, Agriculture, Akodon, Alloparenting, Alpine marmot, Altricial, Animal cognition, Animals in space, Anomalure, Anomaluromorpha, Antarctica, Antelope, Anticoagulant, Aplodontiidae, Apodemus, Arboreal locomotion, Arvicanthis, Atlantic puffin, Babesiosis, Baculum, Baluchistan pygmy jerboa, Bank vole, Bat detector, Beaver, Behavioral economics, Belding's ground squirrel, Biodiversity loss, Biological pest control, Biological specificity, Biome, Biosatellite, Bipedalism, Birch mouse, Bison, Black rat, Black-tailed prairie dog, Blesmol, Boreoeutheria, Brazil nut, Brodifacoum, Brown hairy dwarf porcupine, Brown rat, Brush-tailed porcupine, Bubonic plague, California ground squirrel, California mouse, Cane rat, ..., Cannibalism, Cape ground squirrel, Cape mole-rat, Capybara, Carbohydrate, Carnivora, Castoridae, Castorimorpha, Castoroides, Cat, Cavia, Caviidae, Caviomorpha, Cecum, Cell biology, Cellulose, Cenozoic, Cheek pouch, Chinchilla, Chinchilla rat, Chinchillidae, Chipmunk, Chisel, Clade, Cognitive bias, Colony (biology), Columbian ground squirrel, Common degu, Common kestrel, Convergent evolution, Cooperative breeding, Coprophagia, Cotton rat, Cottontail rabbit, Coypu, Cretaceous, Cretaceous–Paleogene extinction event, Cricetidae, Ctenodactylomorphi, Ctenodactylus, Cusco, Damaraland mole-rat, Dassie rat, Dasyproctidae, Dear enemy effect, Developmental biology, Diastema, Diatomyidae, Dichromacy, Digitigrade, Dinomyidae, Dinosaur, Dipodidae, Dobrava-Belgrade virus, Domestication, Dominance (ethology), Dormouse, Earless water rat, Eastern gray squirrel, Echimyidae, Ecosystem engineer, Edible dormouse, Emin's pouched rat, Eocene, Eospalax, Euarchontoglires, Eurasia, Eurasian harvest mouse, European water vole, Eusociality, Evolutionary radiation, Family (biology), Ferret, Feticide, Field vole, Five-toed pygmy jerboa, Flying squirrel, Fossil, Fossorial, Fukomys, Fungus, Fur, Gambian pouched rat, Genetics, Geomyoidea, Gerbil, Germ theory of disease, Giant hutia, Glires, Golden-mantled ground squirrel, Gopher, Great American Interchange, Great Plains, Ground squirrel, Ground vibrations, Guinea pig, Gundi, Habitat, Hamster, Hare, Herbaceous plant, Herbivore, Heteromyidae, Hibernation, Hoarding (animal behavior), Holocene, Holochilus, Hopping mouse, House mouse, Human granulocytic anaplasmosis, Hutia, Hydrology, Hystricognathi, Hystricomorpha, Immunology, Inca Empire, Incertae sedis, Incisor, Indigenous peoples of the Americas, Induced ovulation (animals), Infanticide in rodents, Integrated pest management, Introduced species, Invasive species, Isthmus of Panama, Jaw, Johann Friedrich von Brandt, Johns Hopkins University Press, Josephoartigasia monesi, Kangaroo mouse, Kangaroo rat, Keystone species, Kin recognition, Korabl-Sputnik 4, Laboratory rat, Lagomorpha, Lakota people, Land mine, Latin, Laughter, Laurasia, Laurasiatheria, Leishmaniasis, Leptospirosis, Lion, List of mammals of Australia, List of rodents of Australia, List of rodents of the Caribbean, Litter (animal), Lord Howe fantail, Lord Howe Island, Louis Pasteur, Lundy, Lyme disease, Major histocompatibility complex, Major urinary proteins, Malagasy giant rat, Mammal, Maned rat, Manx shearwater, Marmot, Marsupial, Masseter muscle, Mastomys, Mating plug, Metacognition, Microtus, Middle East blind mole-rat, Midway Atoll, Miocene, Model organism, Mole-rat, Molecular clock, Molecular phylogenetics, Molecular Phylogenetics and Evolution, Mongolian gerbil, Mongoose, Monitor lizard, Monogamy in animals, Monophyly, Morphine, Most recent common ancestor, Mountain beaver, Mountain degu, Mouse, Mouse models of breast cancer metastasis, Mouse-like hamster, Multituberculata, Muridae, Murinae, Muroidea, Muskrat, Mycorrhiza, Myomorpha, Naked mole-rat, NASA, National Pest Management Association, Nature (journal), Nature Publishing Group, Navajo, Nepotism, Nesomyidae, New Guinea, New Latin, New World flying squirrel, New World porcupine, New World rats and mice, North American beaver, North American fur trade, North American porcupine, Northern grasshopper mouse, Nosopsyllus fasciatus, Oceanic dispersal, Octodontidae, Odd-toed ungulate, Old World porcupine, Oldfield mouse, Olfaction, Oligocene, Oligoryzomys, Omnivore, Omsk hemorrhagic fever, Oncology, Online Etymology Dictionary, Operant conditioning, Order (biology), Orthohantavirus, Oryzomys, Ovulation, Paca, Pacarana, Pain, Pair bond, Paleocene, Parallel evolution, Patagium, Patagonian mara, Pathogen, Pedetes, Pedetidae, Peromyscus, Pest (organism), Pheromone, Phyllotis, Phylogenetic tree, Piacenzian, Pierre Paul Émile Roux, Pika, Placenta, Plains pocket gopher, Plantigrade, Platacanthomyidae, Pleistocene, Pliocene, Poikilotherm, Polygyny in animals, Polynesian rat, Porcupine, Powassan virus, Prairie dog, Prairie vole, Precocial, Predation, Prehensility, Premolar, Primate, Promiscuity, Pronghorn, Public health, Puumala virus, Quadrupedalism, Quillwork, Rabbit, Rakali, Rat, Red squirrel, Red-crested tree-rat, Relapsing fever, Rice, Richardson's ground squirrel, Rickettsialpox, Riparian zone, Roach (headdress), Robert Koch, Rocky Mountain spotted fever, Rodenticide, Saaremaa virus, Salmonella, Sciuromorpha, Seismic communication, Sexual dimorphism, Sexual selection, Shrewlike rat, Sigmodontinae, Sister group, Smooth-toothed pocket gopher, Southern Paiute, Soviet Union, Spalacidae, Spatial memory, Sperm competition, Spore, Squirrel, Substance P, Taukihepa / Big South Cape Island, Taxonomic rank, Temporal muscle, Territory (animal), Texas pocket gopher, Thanetian, Thermoregulation, Thomas Edward Bowdich, Toxoplasmosis, Tree squirrel, Trichinosis, Tuberculosis, Tuco-tuco, Tundra, Type (biology), Typhus, UFAW Handbook, Ultraviolet, Urban area, Vesper mouse, Viscacha, Vole, Weaning, West Nile virus, Whiskers, Whisking in animals, White-footed mouse, Yellow-bellied marmot, Yellow-pine chipmunk, Yersinia pestis, Zapodinae, Zapus, Zokor, Zygodontomys. Expand index (338 more) »

Adaptive radiation

In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, creates new challenges, or opens new environmental niches.

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Aeration (also called aerification) is the process by which air is circulated through, mixed with or dissolved in a liquid or substance.

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Age of Discovery

The Age of Discovery, or the Age of Exploration (approximately from the beginning of the 15th century until the end of the 18th century) is an informal and loosely defined term for the period in European history in which extensive overseas exploration emerged as a powerful factor in European culture and was the beginning of globalization.

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The term agouti (agutí) or common agouti designates several rodent species of the genus Dasyprocta.

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Agriculture is the cultivation of land and breeding of animals and plants to provide food, fiber, medicinal plants and other products to sustain and enhance life.

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Akodon is a genus consisting of South American grass mice.

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Alloparenting (also referred to as alloparental care) is a term used to classify any form of parental care provided by an individual towards a non-descendent young.

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Alpine marmot

The alpine marmot (Marmota marmota) is a species of marmot found in mountainous areas of central and southern Europe.

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In biology, altricial species are those in which the young are incapable of moving around on their own soon after hatching or being born.

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Animal cognition

Animal cognition describes the mental capacities of non-human animals and the study of those capacities.

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Animals in space

Non-human animals in space originally served to test the survivability of spaceflight, before human spaceflights were attempted.

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The Anomaluridae are a family of rodents found in central Africa.

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Anomaluromorpha is the name given to a clade that unites the anomalures with the springhares.

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Antarctica is Earth's southernmost continent.

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An antelope is a member of a number of even-toed ungulate species indigenous to various regions in Africa and Eurasia.

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Anticoagulants, commonly referred to as blood thinners, are chemical substances that prevent or reduce coagulation of blood, prolonging the clotting time.

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The family Aplodontiidae also known as Aplodontidae, Haplodontiidae or Haploodontini is traditionally classified as the sole extant family of the suborder Protrogomorpha.

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Apodemus is the genus of Muridae (true mice and rats) which contains the Eurasian field mice.

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Arboreal locomotion

Arboreal locomotion is the locomotion of animals in trees.

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Arvicanthis is a genus of rodent from Africa.

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Atlantic puffin

The Atlantic puffin (Fratercula arctica), also known as the common puffin, is a species of seabird in the auk family.

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Babesiosis is a malaria-like parasitic disease caused by infection with Babesia, a genus of Apicomplexa.

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The baculum (also penis bone, penile bone, or os penis, or os priapi) is a bone found in the penis of many placental mammals.

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Baluchistan pygmy jerboa

The Baluchistan pygmy jerboa, or the dwarf three-toed jerboa, (Salpingotulus michaelis) is a species of rodent in the family Dipodidae.

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Bank vole

The bank vole (Myodes glareolus; formerly Clethrionomys glareolus) is a small vole with red-brown fur and some grey patches, with a tail about half as long as its body.

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Bat detector

A bat detector is a device used to detect the presence of bats by converting their echolocation ultrasound signals, as they are emitted by the bats, to audible frequencies, usually about 120 Hz to 15 kHz.

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The beaver (genus Castor) is a large, primarily nocturnal, semiaquatic rodent.

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Behavioral economics

Behavioral economics studies the effects of psychological, cognitive, emotional, cultural and social factors on the economic decisions of individuals and institutions and how those decisions vary from those implied by classical theory.

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Belding's ground squirrel

Belding's ground squirrel (Urocitellus beldingi), also called pot gut, sage rat or picket-pin, is a squirrel that lives on mountains in the western United States.

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Biodiversity loss

Loss of biodiversity or biodiversity loss is the extinction of species (human, plant or animal) worldwide, and also the local reduction or loss of species in a certain habitat.

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Biological pest control

Biological control or biocontrol is a method of controlling pests such as insects, mites, weeds and plant diseases using other organisms.

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Biological specificity

In biology, biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species.

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A biome is a community of plants and animals that have common characteristics for the environment they exist in.

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A biosatellite is a satellite designed to carry life in space.

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Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs.

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Birch mouse

Birch mice (genus Sicista) are small jumping desert rodents that resemble mice with a long tufted tail and very long hind legs, allowing for remarkable leaps.

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Bison are large, even-toed ungulates in the genus Bison within the subfamily Bovinae.

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Black rat

The black rat (Rattus rattus), also known as the ship rat, roof rat, house rat, is a common long-tailed rodent of the genus Rattus (rats) in the subfamily Murinae.

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Black-tailed prairie dog

The black-tailed prairie dog (Cynomys ludovicianus), is a rodent of the family Sciuridae found in the Great Plains of North America from about the United States-Canada border to the United States-Mexico border.

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The blesmols, also known as mole-rats, or African mole-rats, are burrowing rodents of the family Bathyergidae.

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Boreoeutheria (synonymous with Boreotheria) (Greek: βόρειο "north" + ευ "good" + θεριό "beast") is a clade (magnorder) of placental mammals that is composed of the sister taxa Laurasiatheria (most hoofed mammals, most pawed carnivores, and several other groups) and Euarchontoglires (Supraprimates).

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Brazil nut

The Brazil nut (Bertholletia excelsa) is a South American tree in the family Lecythidaceae, and also the name of the tree's commercially harvested edible seeds.

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Brodifacoum is a highly lethal 4-hydroxycoumarin vitamin K antagonist anticoagulant poison.

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Brown hairy dwarf porcupine

The brown hairy dwarf porcupine (Coendou vestitus) is a species of rodent in the family Erethizontidae.

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Brown rat

The brown rat (Rattus norvegicus), also known as the common rat, street rat, sewer rat, Hanover rat, Norway rat, Norwegian rat, Parisian rat or wharf rat, is one of the best known and most common rats.

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Brush-tailed porcupine

The brush-tailed porcupines are a genus, Atherurus, of Old World porcupines found in Asia or Africa.

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Bubonic plague

Bubonic plague is one of three types of plague caused by bacterium Yersinia pestis.

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California ground squirrel

The California ground squirrel (Otospermophilus beecheyi), is a common and easily observed ground squirrel of the western United States and the Baja California Peninsula; it is common in Oregon and California and its range has relatively recently extended into Washington and northwestern Nevada.

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California mouse

The California mouse (Peromyscus californicus) is a species of rodent in the subfamily Neotominae in the family Cricetidae.

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Cane rat

The genus Thryonomys, also known as the cane rats, is a genus of rodent found throughout Africa south of the Sahara, the only members of the family Thryonomyidae.

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Cannibalism is the act of one individual of a species consuming all or part of another individual of the same species as food.

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Cape ground squirrel

The Cape ground squirrel (Xerus inauris) is found in most of the drier parts of southern Africa from South Africa, through to Botswana, and into Namibia, including Etosha National Park.

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Cape mole-rat

The Cape mole-rat (Georychus capensis) is a species of mole-rat endemic to South Africa.

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The capybara (Hydrochoerus hydrochaeris) is a mammal native to South America.

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A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water); in other words, with the empirical formula (where m may be different from n).

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Carnivora (from Latin carō (stem carn-) "flesh" and vorāre "to devour") is a diverse scrotiferan order that includes over 280 species of placental mammals.

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The family Castoridae contains the two living species of beavers and their fossil relatives.

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Castorimorpha is the suborder of rodents containing the beavers, the pocket gophers, and the kangaroo rats and kangaroo mice.

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Castoroides, or giant beaver, is an extinct genus of enormous beavers that lived in North America during the Pleistocene.

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The domestic cat (Felis silvestris catus or Felis catus) is a small, typically furry, carnivorous mammal.

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Cavia is a genus in the subfamily Caviinae that contains the rodents commonly known as guinea pigs or cavies.

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The cavy family (Caviidae) is a family of rodents native to South America, including the domestic guinea pig, wild cavies, and the capybara, among other animals.

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Caviomorpha is the rodent infraorder or parvorder that unites all New World hystricognaths.

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The cecum or caecum (plural ceca; from the Latin caecus meaning blind) is an intraperitoneal pouch that is considered to be the beginning of the large intestine.

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Cell biology

Cell biology (also called cytology, from the Greek κυτος, kytos, "vessel") is a branch of biology that studies the structure and function of the cell, the basic unit of life.

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Cellulose is an organic compound with the formula, a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units.

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The Cenozoic Era meaning "new life", is the current and most recent of the three Phanerozoic geological eras, following the Mesozoic Era and, extending from 66 million years ago to the present day.

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Cheek pouch

Cheek pouches are pockets on both sides of the head of some mammals between the jaw and the cheek.

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Chinchillas are either of two species of crepuscular rodents of the parvorder Caviomorpha.

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Chinchilla rat

Chinchilla rats or chinchillones are members of the family Abrocomidae.

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The family Chinchillidae is in the order Rodentia and consists of the chinchillas, the viscachas, and their fossil relatives.

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Chipmunks are small, striped rodents of the family Sciuridae.

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A chisel is a tool with a characteristically shaped cutting edge (such that wood chisels have lent part of their name to a particular grind) of blade on its end, for carving or cutting a hard material such as wood, stone, or metal by hand, struck with a mallet, or mechanical power.

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A clade (from κλάδος, klados, "branch"), also known as monophyletic group, is a group of organisms that consists of a common ancestor and all its lineal descendants, and represents a single "branch" on the "tree of life".

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Cognitive bias

A cognitive bias is a systematic pattern of deviation from norm or rationality in judgment.

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Colony (biology)

In biology, a colony is composed of two or more conspecific individuals living in close association with, or connected to, one another.

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Columbian ground squirrel

The Columbian ground squirrel (Urocitellus columbianus), is a species of rodent common in certain regions of Canada and the northwestern United States.

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Common degu

The common degu (Octodon degus) is a small caviomorph rodent endemic to the Chilean matorral ecoregion of central Chile.

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Common kestrel

The common kestrel (Falco tinnunculus) is a bird of prey species belonging to the kestrel group of the falcon family Falconidae.

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Convergent evolution

Convergent evolution is the independent evolution of similar features in species of different lineages.

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Cooperative breeding

Cooperative breeding is a social system characterized by alloparental care: offspring receive care not only from their parents, but also from additional group members, often called helpers.

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Coprophagia or coprophagy is the consumption of feces.

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Cotton rat

A cotton rat is any member of the rodent genus Sigmodon.

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Cottontail rabbit

Cottontail rabbits are among the 20 lagomorph species in the genus Sylvilagus, found in the Americas.

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The coypu (Myocastor coypus), also known as the nutria, is a large, herbivorous, semiaquatic rodent.

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The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (mya) to the beginning of the Paleogene Period mya.

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Cretaceous–Paleogene extinction event

The Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a sudden mass extinction of some three-quarters of the plant and animal species on Earth, approximately 66 million years ago.

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The Cricetidae are a family of rodents in the large and complex superfamily Muroidea.

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Ctenodactylomorphi is an infraorder of rodent's suborder Hystricomorpha.

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Ctenodactylus is a genus of rodent in the family Ctenodactylidae.

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Cusco (Cuzco,; Qusqu or Qosqo), often spelled Cuzco, is a city in southeastern Peru, near the Urubamba Valley of the Andes mountain range.

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Damaraland mole-rat

The Damaraland mole-rat, Damara mole rat, or Damaraland blesmol (Fukomys damarensis) is a burrowing rodent found in southern Africa.

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Dassie rat

The dassie rat (Petromus typicus) is an African rodent found among rocky outcroppings.

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Dasyproctidae is a family of large South American rodents, comprising the agoutis and acouchis.

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Dear enemy effect

The dear enemy effect or dear enemy recognition is an ethological phenomenon in which two neighbouring territorial animals become less aggressive toward one another once territorial borders are well-established.

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Developmental biology

Developmental biology is the study of the process by which animals and plants grow and develop.

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A diastema (plural diastemata) is a space or gap between two teeth.

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The rodent family Diatomyidae, found in Asia, is represented by a single known living species, Laonastes aenigmamus.

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Dichromacy (di meaning "two" and chroma meaning "color") is the state of having two types of functioning color receptors, called cone cells, in the eyes.

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A digitigrade, is an animal that stands or walks on its digits, or toes.

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The Dinomyidae are a family of South American hystricognath rodents: the dinomyids were once a very speciose group, but now contains only a single living species, the pacarana.

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Dinosaurs are a diverse group of reptiles of the clade Dinosauria.

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The Dipodidae, or dipodids, are a family of rodents found across the Northern Hemisphere, the sole family in the superfamily Dipodoidea.

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Dobrava-Belgrade virus

Dobrava-Belgrade virus (DOBV), also known as Dobrava virus, is an enveloped, single-stranded, negative-sense RNA virus species of Old World Orthohantavirus.

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Domestication is a sustained multi-generational relationship in which one group of organisms assumes a significant degree of influence over the reproduction and care of another group to secure a more predictable supply of resources from that second group.

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Dominance (ethology)

Dominance in ethology is an "individual's preferential access to resources over another." Dominance in the context of biology and anthropology is the state of having high social status relative to one or more other individuals, who react submissively to dominant individuals.

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A dormouse is a rodent of the family Gliridae (this family is also variously called Myoxidae or Muscardinidae by different taxonomists).

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Earless water rat

The earless water rat (Crossomys moncktoni) is a New Guinea rodent, part of the Hydromys group of the subfamily of Old World rats and mice (Murinae).

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Eastern gray squirrel

Sciurus carolinensis, common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus Sciurus.

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Echimyidae is the family of neotropical spiny rats and their fossil relatives.

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Ecosystem engineer

An ecosystem engineer is any organism that creates, significantly modifies, maintains or destroys a habitat.

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Edible dormouse

The edible dormouse or fat dormouse (Glis glis) is a large dormouse and the only living species in the genus Glis, found in most of western Europe.

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Emin's pouched rat

Emin's pouched rat (Cricetomys emini), also known as the African pouched rat, is a large rat of the muroid superfamily.

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The Eocene Epoch, lasting from, is a major division of the geologic timescale and the second epoch of the Paleogene Period in the Cenozoic Era.

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Eospalax is a genus of rodents in the family Spalacidae.

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Euarchontoglires (synonymous with Supraprimates) is a clade and a superorder of mammals, the living members of which belong to one of the five following groups: rodents, lagomorphs, treeshrews, colugos and primates.

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Eurasia is a combined continental landmass of Europe and Asia.

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Eurasian harvest mouse

The harvest mouse (Micromys minutus) is a small rodent native to Europe and Asia.

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European water vole

The European water vole or northern water vole (Arvicola amphibius, included in synonymy: A. terrestris), is a semiaquatic rodent.

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Eusociality (from Greek εὖ eu "good" and social), the highest level of organization of animal sociality, is defined by the following characteristics: cooperative brood care (including care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labor into reproductive and non-reproductive groups.

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Evolutionary radiation

An evolutionary radiation is an increase in taxonomic diversity or morphological disparity, due to adaptive change or the opening of ecospace.

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Family (biology)

In biological classification, family (familia, plural familiae) is one of the eight major taxonomic ranks; it is classified between order and genus.

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The ferret (Mustela putorius furo) is the domesticated form of the European polecat, a mammal belonging to the same genus as the weasel, Mustela of the family Mustelidae.

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Feticide (or foeticide) is an act that causes the death of a fetus.

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Field vole

The field vole or short-tailed vole (Microtus agrestis) is a grey-brown vole, around four inches (ten centimetres) in length, with a short tail.

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Five-toed pygmy jerboa

The five-toed pygmy jerboa (Cardiocranius paradoxus) is a species of rodent in the family Dipodidae.

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Flying squirrel

Flying squirrels (scientifically known as Pteromyini or Petauristini) are a tribe of 50 species of squirrels in the family Sciuridae.

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A fossil (from Classical Latin fossilis; literally, "obtained by digging") is any preserved remains, impression, or trace of any once-living thing from a past geological age.

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Cape ground squirrel. A fossorial (from Latin fossor, "digger") is an animal adapted to digging and lives primarily, but not solely, underground.

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Fukomys is a genus described in 2006 of common mole-rats, containing several species that were formerly placed in the genus Cryptomys; its species are endemic to Africa.

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A fungus (plural: fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.

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Fur is the hair covering of non-human mammals, particularly those mammals with extensive body hair that is soft and thick.

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Gambian pouched rat

The Gambian pouched rat (Cricetomys gambianus), also known as the African giant pouched rat, is a nocturnal pouched rat of the giant pouched rat genus Cricetomys, and is among the largest muroids in the world, growing up to about long including their tail which makes up half their length.

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Genetics is the study of genes, genetic variation, and heredity in living organisms.

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Geomyoidea is a superfamily of rodent that contains the pocket gophers (Geomyidae), the kangaroo rats and mice (Heteromyidae), and their fossil relatives.

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A gerbil is a small mammal of the subfamily Gerbillinae in the order Rodentia.

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Germ theory of disease

The germ theory of disease is the currently accepted scientific theory of disease.

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Giant hutia

The giant hutias are an extinct group of large rodents known from fossil and subfossil material in the West Indies.

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Glires (Latin glīrēs, dormice) is a clade (sometimes ranked as a grandorder) consisting of rodents and lagomorphs (rabbits, hares, and pikas).

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Golden-mantled ground squirrel

The golden-mantled ground squirrel (Callospermophilus lateralis) is a ground squirrel native to western North America.

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Pocket gophers, commonly referred to as gophers, are burrowing rodents of the family Geomyidae.

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Great American Interchange

The Great American Interchange was an important late Cenozoic paleozoogeographic event in which land and freshwater fauna migrated from North America via Central America to South America and vice versa, as the volcanic Isthmus of Panama rose up from the sea floor and bridged the formerly separated continents.

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Great Plains

The Great Plains (sometimes simply "the Plains") is the broad expanse of flat land (a plain), much of it covered in prairie, steppe, and grassland, that lies west of the Mississippi River tallgrass prairie in the United States and east of the Rocky Mountains in the U.S. and Canada.

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Ground squirrel

The ground squirrels are members of the squirrel family of rodents (Sciuridae) which generally live on or in the ground, rather than trees.

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Ground vibrations

Ground vibrations is a technical term that is being used to describe mostly man-made vibrations of the ground, in contrast to natural vibrations of the Earth studied by seismology.

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Guinea pig

The guinea pig or domestic guinea pig (Cavia porcellus), also known as cavy or domestic cavy, is a species of rodent belonging to the family Caviidae and the genus Cavia.

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Gundis or comb rats (family Ctenodactylidae) are a group of small, stocky rodents found in Africa.

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In ecology, a habitat is the type of natural environment in which a particular species of organism lives.

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Hamsters are rodents (order Rodentia) belonging to the subfamily Cricetinae, which contains about 25 species classified in six or seven genera.

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Hares and jackrabbits are leporids belonging to the genus Lepus.

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Herbaceous plant

Herbaceous plants (in botanical use frequently simply herbs) are plants that have no persistent woody stem above ground.

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A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage, for the main component of its diet.

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Heteromyidae is a family of rodents consisting of kangaroo rats, kangaroo mice, pocket mice and spiny pocket mice.

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Hibernation is a state of inactivity and metabolic depression in endotherms.

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Hoarding (animal behavior)

Hoarding or caching in animal behavior is the storage of food in locations hidden from the sight of both conspecifics (animals of the same or closely related species) and members of other species.

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The Holocene is the current geological epoch.

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Holochilus is a genus of semiaquatic rodents in the tribe Oryzomyini of family Cricetidae, sometimes called marsh rats.

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Hopping mouse

A hopping mouse is any of about ten different Australian native mice in the genus Notomys.

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House mouse

The house mouse (Mus musculus) is a small mammal of the order Rodentia, characteristically having a pointed snout, small rounded ears, and a long naked or almost hairless tail.

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Human granulocytic anaplasmosis

Human granulocytic anaplasmosis (HGA) is a tick-borne, infectious disease caused by Anaplasma phagocytophilum, an obligate intracellular bacterium that is typically transmitted to humans by ticks of the Ixodes ricinus species complex, including Ixodes scapularis and Ixodes pacificus in North America.

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Hutias are moderately large cavy-like rodents of the family Capromyidae that inhabit the Caribbean Islands.

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Hydrology is the scientific study of the movement, distribution, and quality of water on Earth and other planets, including the water cycle, water resources and environmental watershed sustainability.

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The Hystricognathi are an infraorder of rodents, distinguished from other rodents by the bone structure of their skulls.

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The term Hystricomorpha (from Greek ὕστριξ, hystrix.

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Immunology is a branch of biology that covers the study of immune systems in all organisms.

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Inca Empire

The Inca Empire (Quechua: Tawantinsuyu, "The Four Regions"), also known as the Incan Empire and the Inka Empire, was the largest empire in pre-Columbian America, and possibly the largest empire in the world in the early 16th century.

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Incertae sedis

Incertae sedis (Latin for "of uncertain placement") is a term used for a taxonomic group where its broader relationships are unknown or undefined.

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Incisors (from Latin incidere, "to cut") are the front teeth present in most mammals.

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Indigenous peoples of the Americas

The indigenous peoples of the Americas are the pre-Columbian peoples of the Americas and their descendants. Although some indigenous peoples of the Americas were traditionally hunter-gatherers—and many, especially in the Amazon basin, still are—many groups practiced aquaculture and agriculture. The impact of their agricultural endowment to the world is a testament to their time and work in reshaping and cultivating the flora indigenous to the Americas. Although some societies depended heavily on agriculture, others practiced a mix of farming, hunting and gathering. In some regions the indigenous peoples created monumental architecture, large-scale organized cities, chiefdoms, states and empires. Many parts of the Americas are still populated by indigenous peoples; some countries have sizable populations, especially Belize, Bolivia, Canada, Chile, Ecuador, Greenland, Guatemala, Guyana, Mexico, Panama and Peru. At least a thousand different indigenous languages are spoken in the Americas. Some, such as the Quechuan languages, Aymara, Guaraní, Mayan languages and Nahuatl, count their speakers in millions. Many also maintain aspects of indigenous cultural practices to varying degrees, including religion, social organization and subsistence practices. Like most cultures, over time, cultures specific to many indigenous peoples have evolved to incorporate traditional aspects but also cater to modern needs. Some indigenous peoples still live in relative isolation from Western culture, and a few are still counted as uncontacted peoples.

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Induced ovulation (animals)

Ovulation occurs at the ovary surface and is described as the process in which an oocyte (female germ cell) is released from the follicle.

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Infanticide in rodents

Infanticide is the termination of a neonate after it has been born, and in zoology this is often the termination or consumption of newborn animals by either a parent or an unrelated adult.

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Integrated pest management

Integrated pest management (IPM), also known as integrated pest control (IPC) is a broad-based approach that integrates practices for economic control of pests.

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Introduced species

An introduced species (alien species, exotic species, non-indigenous species, or non-native species) is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental.

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Invasive species

An invasive species is a species that is not native to a specific location (an introduced species), and that has a tendency to spread to a degree believed to cause damage to the environment, human economy or human health.

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Isthmus of Panama

The Isthmus of Panama (Istmo de Panamá), also historically known as the Isthmus of Darien (Istmo de Darién), is the narrow strip of land that lies between the Caribbean Sea and the Pacific Ocean, linking North and South America.

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The jaw is any opposable articulated structure at the entrance of the mouth, typically used for grasping and manipulating food.

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Johann Friedrich von Brandt

Johann Friedrich von Brandt (25 May 1802 – 15 July 1879) was a German naturalist, who worked mostly in Russia.

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Johns Hopkins University Press

The Johns Hopkins University Press (also referred to as JHU Press or JHUP) is the publishing division of Johns Hopkins University.

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Josephoartigasia monesi

Josephoartigasia monesi, an extinct species of South American caviomorph rodent, is the largest rodent known, and lived from about 4 to 2 million years ago during the Pliocene to early Pleistocene.

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Kangaroo mouse

A kangaroo mouse is either one of the two species of jumping mouse (genus Microdipodops) native to the deserts of the southwestern United States, predominantly found in the state of Nevada.

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Kangaroo rat

Kangaroo rats, small rodents of genus Dipodomys, are native to western North America.

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Keystone species

A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance.

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Kin recognition

Kin recognition, also called kin detection, is an organism's ability to distinguish between close genetic kin and non-kin.

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Korabl-Sputnik 4

Korabl-Sputnik 4 (Корабль-Спутник 4 meaning Ship-Satellite 4) or Vostok-3KA No.1, also known as Sputnik 9 in the West, was a Soviet spacecraft which was launched in 1961.

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Laboratory rat

A laboratory rat or lab rat is a rat of the species Rattus norvegicus (brown rat) which is bred and kept for scientific research.

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The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two living families: the Leporidae (hares and rabbits) and the Ochotonidae (pikas).

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Lakota people

The Lakota (pronounced, Lakota language: Lakȟóta) are a Native American tribe.

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Land mine

A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it.

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Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.

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Laughter is a physical reaction in humans consisting typically of rhythmical, often audible contractions of the diaphragm and other parts of the respiratory system.

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Laurasia was the more northern of two supercontinents (the other being Gondwana) that formed part of the Pangaea supercontinent around (Mya).

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Laurasiatheria is a clade of placental mammals that originated on the northern supercontinent of Laurasia 99 million years ago.

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Leishmaniasis is a disease caused by parasites of the Leishmania type.

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Leptospirosis is an infection caused by corkscrew-shaped bacteria called Leptospira.

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The lion (Panthera leo) is a species in the cat family (Felidae).

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List of mammals of Australia

A total of 379 species of mammals have been recorded in Australia and surrounding continental waters; 357 indigenous and 22 introduced.

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List of rodents of Australia

This is the list of rodents of Australia.

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List of rodents of the Caribbean

The Caribbean region is home to a diverse and largely endemic rodent fauna.

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Litter (animal)

A litter is the live birth of multiple offspring at one time in animals from the same mother and usually from one set of parents, particularly from three to eight offspringThe word is most often used for the offspring of mammals, but can be used for any animal that gives birth to multiple young.

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Lord Howe fantail

The Lord Howe fantail (Rhipidura fuliginosa cervina), also known as the Lord Howe Island fantail or fawn-breasted fantail, was a small bird in the fantail family, Rhipiduridae.

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Lord Howe Island

Lord Howe Island (formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, directly east of mainland Port Macquarie, and about southwest of Norfolk Island.

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Louis Pasteur

Louis Pasteur (December 27, 1822 – September 28, 1895) was a French biologist, microbiologist and chemist renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurization.

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Lundy is the largest island in the Bristol Channel.

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Lyme disease

Lyme disease, also known as Lyme borreliosis, is an infectious disease caused by bacteria of the Borrelia type which is spread by ticks.

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Major histocompatibility complex

The major histocompatibility complex (MHC) is a set of cell surface proteins essential for the acquired immune system to recognize foreign molecules in vertebrates, which in turn determines histocompatibility.

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Major urinary proteins

Major urinary proteins (Mups), also known as α2u-globulins, are a subfamily of proteins found in abundance in the urine and other secretions of many animals.

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Malagasy giant rat

The Malagasy giant rat (Hypogeomys antimena), also known as the votsotsa or votsovotsa, is a nesomyid rodent found only in the Menabe region of Madagascar.

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Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.

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Maned rat

The maned rat or crested rat (Lophiomys imhausi) is a nocturnal, long-haired and bushy-tailed East African rodent that superficially resembles a porcupine.

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Manx shearwater

The Manx shearwater (Puffinus puffinus) is a medium-sized shearwater in the seabird family Procellariidae.

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Marmots are large squirrels in the genus Marmota, with 15 species.

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Marsupials are any members of the mammalian infraclass Marsupialia.

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Masseter muscle

In human anatomy, the masseter is one of the muscles of mastication.

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Mastomys is a genus of rodent in the family Muridae endemic to Africa.

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Mating plug

A mating plug in a female Richardson's ground squirrel (''Spermophilus richardsonii'') A mating plug, also known as a copulation plug, sperm plug, vaginal plug, sement or sphragis (Latin, from Greek σφραγίδα 'sfragida' a seal), is gelatinous secretion used in the mating of some species.

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Metacognition is "cognition about cognition", "thinking about thinking", "knowing about knowing", becoming "aware of one's awareness" and higher-order thinking skills.

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Microtus is a genus of voles found in North America, Europe, and northern Asia.

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Middle East blind mole-rat

The Middle East blind mole-rat or Palestine mole-rat (Spalax ehrenbergi) (also known as Nannospalax ehrenbergi) is a species of rodent in the family Spalacidae.

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Midway Atoll

Midway Atoll (also called Midway Island and Midway Islands; Hawaiian: Pihemanu Kauihelani) is a atoll in the North Pacific Ocean at.

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The Miocene is the first geological epoch of the Neogene Period and extends from about (Ma).

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Model organism

A model organism is a non-human species that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in the organism model will provide insight into the workings of other organisms.

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Mole-rat or mole rat refers to several groups of burrowing Old World rodents.

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Molecular clock

The molecular clock is a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged.

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Molecular phylogenetics

Molecular phylogenetics is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominately in DNA sequences, to gain information on an organism's evolutionary relationships.

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Molecular Phylogenetics and Evolution

Molecular Phylogenetics and Evolution is a peer-reviewed scientific journal of evolutionary biology and phylogenetics.

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Mongolian gerbil

Meriones unguiculatus, the Mongolian gerbil or Mongolian jird, is a small rodent belonging to the subfamily Gerbillinae.

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Mongoose is the popular English name for 29 of the 34 species in the 14 genera of the family Herpestidae, which are small feliform carnivorans native to southern Eurasia and mainland Africa.

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Monitor lizard

The monitor lizards are large lizards in the genus Varanus.

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Monogamy in animals

Monogamous pairing in animals refers to the natural history of mating systems in which species pair bond to raise offspring.

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In cladistics, a monophyletic group, or clade, is a group of organisms that consists of all the descendants of a common ancestor.

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Morphine is a pain medication of the opiate variety which is found naturally in a number of plants and animals.

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Most recent common ancestor

In biology and genealogy, the most recent common ancestor (MRCA, also last common ancestor (LCA), or concestor) of any set of organisms is the most recent individual from which all the organisms are directly descended.

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Mountain beaver

The mountain beaver (Aplodontia rufa)Other names include mountain boomer, ground bear, giant mole, gehalis, sewellel, suwellel, showhurll, showtl, and showte, as well as a number of Chinookan and other Native American terms; "mountain boomer" is a misnomer, and the animal does not make the characteristic tail slapping sound of the true beaver species.

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Mountain degu

The mountain degu (Octodontomys gliroides) is a species of rodent in the family Octodontidae.

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A mouse (Mus), plural mice, is a small rodent characteristically having a pointed snout, small rounded ears, a body-length scaly tail and a high breeding rate.

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Mouse models of breast cancer metastasis

Breast cancer metastatic mouse models are experimental approaches in which mice are genetically manipulated to develop a mammary tumor leading to distant focal lesions of mammary epithelium.

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Mouse-like hamster

right Mouse-like hamster using its tail for balance while standing on a branch (a feat difficult for hamsters) Mouse-like hamsters are a group of small rodents found in Syria, Azerbaijan, Iran, Turkmenistan, Afghanistan, and Pakistan.

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Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct taxon of rodent-like allotherian mammals that existed for approximately 166 million years, the longest fossil history of any mammal lineage.

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The Muridae, or murids, are the largest family of rodents and of mammals, containing over 700 species found naturally throughout Eurasia, Africa, and Australia.

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The Old World rats and mice, part of the subfamily Murinae in the family Muridae, comprise at least 519 species.

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The Muroidea are a large superfamily of rodents, including mice, rats, voles, hamsters, gerbils, and many other relatives.

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The muskrat (Ondatra zibethicus), the only species in genus Ondatra and tribe Ondatrini, is a medium-sized semiaquatic rodent native to North America and is an introduced species in parts of Europe, Asia, and South America.

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A mycorrhiza (from Greek μύκης mýkēs, "fungus", and ῥίζα rhiza, "root"; pl. mycorrhizae, mycorrhiza or mycorrhizas) is a symbiotic association between a fungus and the roots of a vascular host plant.

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The suborder Myomorpha contains 1,137 species of mouse-like rodents, nearly a quarter of all mammal species.

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Naked mole-rat

The naked mole-rat (Heterocephalus glaber), also known as the sand puppy, is a burrowing rodent native to parts of East Africa.

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The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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National Pest Management Association

The National Pest Management Association (NPMA), is a non-profit trade association founded in 1933 that represents the interests of the professional pest management industry and pest control professionals in the United States.

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Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

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Nature Publishing Group

Nature Publishing Group is a division of the international scientific publishing company Springer Nature that publishes academic journals, magazines, online databases, and services in science and medicine.

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The Navajo (British English: Navaho, Diné or Naabeehó) are a Native American people of the Southwestern United States.

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Nepotism is based on favour granted to relatives in various fields, including business, politics, entertainment, sports, religion and other activities.

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The Nesomyidae are a family of African rodents in the large and complex superfamily Muroidea.

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New Guinea

New Guinea (Nugini or, more commonly known, Papua, historically, Irian) is a large island off the continent of Australia.

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New Latin

New Latin (also called Neo-Latin or Modern Latin) was a revival in the use of Latin in original, scholarly, and scientific works between c. 1375 and c. 1900.

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New World flying squirrel

The three species of New World flying squirrels, genus Glaucomys, are the only species of flying squirrel found in North America.

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New World porcupine

The New World porcupines, family Erethizontidae, are large arboreal rodents, distinguished by their spiny coverings from which they take their name.

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New World rats and mice

The New World rats and mice are a group of related rodents found in North and South America.

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North American beaver

The North American beaver (Castor canadensis) is one of two extant beaver species.

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North American fur trade

The North American fur trade was the industry and activities related to the acquisition, trade, exchange, and sale of animal furs in North America.

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North American porcupine

The North American porcupine (Erethizon dorsatum), also known as the Canadian porcupine or common porcupine, is a large rodent in the New World porcupine family.

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Northern grasshopper mouse

The northern grasshopper mouse (Onychomys leucogaster) is a North American carnivorous rodent of the family Cricetidae.

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Nosopsyllus fasciatus

Nosopsyllus fasciatus, the northern rat flea, is a species of flea found on domestic rats and house mice.

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Oceanic dispersal

Oceanic dispersal is a type of biological dispersal that occurs when terrestrial organisms transfer from one land mass to another by way of a sea crossing.

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Octodontidae is a family of rodents, restricted to southwestern South America.

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Odd-toed ungulate

Members of the order Perissodactyla, also known as odd-toed ungulates, are mammals characterized by an odd number of toes and by hindgut fermentation with somewhat simple stomachs.

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Old World porcupine

The Old World porcupines, or Hystricidae, are large terrestrial rodents, distinguished by the spiny covering from which they take their name.

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Oldfield mouse

The oldfield mouse or beach mouse (Peromyscus polionotus) is a nocturnal species of rodent in the family Cricetidae.

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Olfaction is a chemoreception that forms the sense of smell.

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The Oligocene is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present (to). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain.

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Oligoryzomys is a genus of rodents in the tribe Oryzomyini of family Cricetidae.

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Omnivore is a consumption classification for animals that have the capability to obtain chemical energy and nutrients from materials originating from plant and animal origin.

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Omsk hemorrhagic fever

Omsk hemorrhagic fever is a viral hemorrhagic fever caused by a Flavivirus.

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Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of cancer.

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Online Etymology Dictionary

The Online Etymology Dictionary is a free online dictionary written and compiled by Douglas Harper that describes the origins of English-language words.

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Operant conditioning

Operant conditioning (also called "instrumental conditioning") is a learning process through which the strength of a behavior is modified by reinforcement or punishment.

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Order (biology)

In biological classification, the order (ordo) is.

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Orthohantaviruses (or hantaviruses) are single-stranded, enveloped, negative-sense RNA viruses in the Hantaviridae family of the order Bunyavirales, which normally infect rodents where they do not cause disease.

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Oryzomys is a genus of semiaquatic rodents in the tribe Oryzomyini living in southern North America and far northern South America.

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Ovulation is the release of eggs from the ovaries.

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A paca is a member of the genus Cuniculus of ground-dwelling, herbivorous rodents in South and Central America.

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The pacarana (Dinomys branickii) is a rare and slow-moving hystricognath rodent indigenous to South America.

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Pain is a distressing feeling often caused by intense or damaging stimuli.

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Pair bond

In biology, a pair bond is the strong affinity that develops in some species between a pair consisting of a male and female, or in some cases as a same-sex pairing, potentially leading to producing offspring and/or a lifelong bond.

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The Paleocene or Palaeocene, the "old recent", is a geological epoch that lasted from about.

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Parallel evolution

Parallel evolution is the development of a similar trait in related, but distinct, species descending from the same ancestor, but from different clades.

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The patagium (plural: patagia) is a membranous structure that assists an animal in gliding or flight.

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Patagonian mara

The Patagonian mara (Dolichotis patagonum) is a relatively large rodent in the mara genus (Dolichotis).

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In biology, a pathogen (πάθος pathos "suffering, passion" and -γενής -genēs "producer of") or a '''germ''' in the oldest and broadest sense is anything that can produce disease; the term came into use in the 1880s.

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Pedetes is a genus of rodent, the springhares, in the family Pedetidae.

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The Pedetidae are a family of mammals from the rodent order.

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Peromyscus is a genus of rodents whose members are commonly referred to as deer mice.

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Pest (organism)

A pest is a plant or animal detrimental to humans or human concerns including crops, livestock, and forestry.

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A pheromone (from Ancient Greek φέρω phero "to bear" and hormone, from Ancient Greek ὁρμή "impetus") is a secreted or excreted chemical factor that triggers a social response in members of the same species.

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Phyllotis is a genus of rodent in the family Cricetidae.

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Phylogenetic tree

A phylogenetic tree or evolutionary tree is a branching diagram or "tree" showing the evolutionary relationships among various biological species or other entities—their phylogeny—based upon similarities and differences in their physical or genetic characteristics.

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The Piacenzian is in the international geologic time scale the upper stage or latest age of the Pliocene.

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Pierre Paul Émile Roux

Pierre Paul Émile Roux FRS (17 December 1853, Confolens, Charente – 3 November 1933, Paris) was a French physician, bacteriologist and immunologist.

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The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, thermo-regulation, waste elimination, and gas exchange via the mother's blood supply; to fight against internal infection; and to produce hormones which support pregnancy.

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Plains pocket gopher

The plains pocket gopher (Geomys bursarius) is one of 35 species of pocket gophers, so named in reference to their externally located, fur-lined cheek pouches.

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Human skeleton, showing plantigrade habit In terrestrial animals, plantigrade locomotion means walking with the toes and metatarsals flat on the ground.

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The rodent family Platacanthomyidae, or Oriental dormice, includes the spiny dormice and the Chinese pygmy dormice.

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The Pleistocene (often colloquially referred to as the Ice Age) is the geological epoch which lasted from about 2,588,000 to 11,700 years ago, spanning the world's most recent period of repeated glaciations.

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The Pliocene (also Pleiocene) Epoch is the epoch in the geologic timescale that extends from 5.333 million to 2.58 million years BP.

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A poikilotherm is an animal whose internal temperature varies considerably.

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Polygyny in animals

Polygyny (from Neo-Greek πολυγυνία from πολύ- poly- "many", and γυνή gyne "woman" or "wife") is a mating system in which one male lives and mates with multiple females, but each female only mates with a single male.

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Polynesian rat

The Polynesian rat, or Pacific rat (Rattus exulans), known to the Māori as kiore, is the third most widespread species of rat in the world behind the brown rat and black rat.

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Porcupines are rodents with a coat of sharp spines, or quills, that protect against predators.

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Powassan virus

Powassan virus is a flavivirus transmitted by ticks, found in North America and in the Russian Far East.

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Prairie dog

Prairie dogs (genus Cynomys) are herbivorous burrowing rodents native to the grasslands of North America.

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Prairie vole

The prairie vole (Microtus ochrogaster) is a small vole found in central North America.

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In biology, precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching.

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Predation is a biological interaction where a predator (a hunting animal) kills and eats its prey (the organism that is attacked).

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Prehensility is the quality of an appendage or organ that has adapted for grasping or holding.

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The premolar teeth, or bicuspids, are transitional teeth located between the canine and molar teeth.

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A primate is a mammal of the order Primates (Latin: "prime, first rank").

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Promiscuity is the practice of having casual sex frequently with different partners or being indiscriminate in the choice of sexual partners.

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The pronghorn (Antilocapra americana) is a species of artiodactyl mammal indigenous to interior western and central North America.

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Public health

Public health is "the science and art of preventing disease, prolonging life and promoting human health through organized efforts and informed choices of society, organizations, public and private, communities and individuals".

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Puumala virus

Puumala virus (PUUV) is a species of orthohantavirus.

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Quadrupedalism or pronograde posture is a form of terrestrial locomotion in animals using four limbs or legs.

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Quillwork is a form of textile embellishment traditionally practiced by Native Americans that employs the quills of porcupines as an aesthetic element.

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Rabbits are small mammals in the family Leporidae of the order Lagomorpha (along with the hare and the pika).

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Hydromys chrysogaster, commonly known as rakali, rabe or water-rat, is an Australian native rodent first described in 1804.

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Rats are various medium-sized, long-tailed rodents in the superfamily Muroidea.

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Red squirrel

The red squirrel or Eurasian red squirrel (Sciurus vulgaris) is a species of tree squirrel in the genus Sciurus common throughout Eurasia.

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Red-crested tree-rat

The red-crested tree-rat is a species of tree-rat found in the monotypic genus Santamartamys in the family Echimyidae.

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Relapsing fever

Relapsing fever is a vector-borne disease caused by infection with certain bacteria in the genus Borrelia, which are transmitted through the bites of lice or soft-bodied ticks (genus Ornithodoros).

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Rice is the seed of the grass species Oryza sativa (Asian rice) or Oryza glaberrima (African rice).

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Richardson's ground squirrel

Richardson's ground squirrel (Urocitellus richardsonii), also known as the Dakrat, or Flickertail, is a North American ground squirrel in the genus Urocitellus.

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Rickettsialpox is a mite-borne infectious illness caused by bacteria of the genus Rickettsia (Rickettsia akari).

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Riparian zone

A riparian zone or riparian area is the interface between land and a river or stream.

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Roach (headdress)

Porcupine hair roaches are a traditional male headdress of a number of Native American tribes in what is now New England, the Great Lakes and Missouri River regions, including the Potawatomi who lived where Chicago now stands.

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Robert Koch

Robert Heinrich Hermann Koch (11 December 1843 – 27 May 1910) was a German physician and microbiologist.

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Rocky Mountain spotted fever

Rocky Mountain spotted fever (RMSF), also known as blue disease, is the most lethal and most frequently reported rickettsial illness in the United States.

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Rodenticides, colloquially rat poison, are typically non-specific pest control chemicals made and sold for the purpose of killing rodents.

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Saaremaa virus

Saaremaa virus is a single-stranded, negative-sense, RNA virus species of Orthohantavirus that causes a milder form of Hantavirus hemorrhagic fever with renal syndrome.

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Salmonella is a genus of rod-shaped (bacillus) Gram-negative bacteria of the family Enterobacteriaceae.

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Sciuromorpha ("squirrel-like") is a rodent clade that includes several different rodent families.

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Seismic communication

Seismic or vibrational communication is a process of conveying information through mechanical (seismic) vibrations of the substrate.

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Sexual dimorphism

Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs.

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Sexual selection

Sexual selection is a mode of natural selection where members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection).

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Shrewlike rat

The shrewlike rats, genus Rhynchomys, also known as the tweezer-beaked rats are a group of unusual Old World rats found only on the island of Luzon in the Philippines.

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The rodent subfamily Sigmodontinae is one of the most diverse groups of mammals.

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Sister group

A sister group or sister taxon is a phylogenetic term denoting the closest relatives of another given unit in an evolutionary tree.

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Smooth-toothed pocket gopher

The smooth-toothed pocket gophers, genus Thomomys, are so called because they are among the only pocket gophers without grooves on their incisors.

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Southern Paiute

Southern Paiute is a tribe of Native Americans that have lived in the Colorado River basin of southern Nevada, northern Arizona, and southern Utah.

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Soviet Union

The Soviet Union, officially the Union of Soviet Socialist Republics (USSR) was a socialist state in Eurasia that existed from 1922 to 1991.

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The Spalacidae, or spalacids, are a family of rodents in the large and complex superfamily Muroidea.

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Spatial memory

In cognitive psychology and neuroscience, spatial memory is that part of the memory responsible for the recording of information about one's environment and spatial orientation.

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Sperm competition

Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg during sexual reproduction.

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In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions.

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Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents.

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Substance P

Substance P (SP) is an undecapeptide (a peptide composed of a chain of 11 amino acid residues) member of the tachykinin neuropeptide family. It is a neuropeptide, acting as a neurotransmitter and as a neuromodulator. Substance P and its closely related neurokinin A (NKA) are produced from a polyprotein precursor after differential splicing of the preprotachykinin A gene. The deduced amino acid sequence of substance P is as follows.

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Taukihepa / Big South Cape Island

Big South Cape Island or Taukihepa is an offshore island of New Zealand to the west of the southern tip of Stewart Island / Rakiura.

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Taxonomic rank

In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in a taxonomic hierarchy.

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Temporal muscle

The temporal muscle, also known as the temporalis, is one of the muscles of mastication.

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Territory (animal)

In ethology, territory is the sociographical area that an animal of a particular species consistently defends against conspecifics (or, occasionally, animals of other species).

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Texas pocket gopher

The Texas pocket gopher (Geomys personatus) is a species of rodent in the family Geomyidae.

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The Thanetian is, in the ICS Geologic timescale, the latest age or uppermost stratigraphic stage of the Paleocene Epoch or series.

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Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different.

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Thomas Edward Bowdich

Thomas Edward Bowdich (20 June 1791 – 10 January 1824) was an English traveller and author.

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Toxoplasmosis is a parasitic disease caused by Toxoplasma gondii.

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Tree squirrel

Tree squirrels are the members of the squirrel family (Sciuridae) commonly just referred to as "squirrels".

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Trichinosis is a parasitic disease caused by roundworms of the Trichinella type.

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Tuberculosis (TB) is an infectious disease usually caused by the bacterium Mycobacterium tuberculosis (MTB).

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A tuco-tuco is a neotropical rodent in the family Ctenomyidae.

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In physical geography, tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons.

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Type (biology)

In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached.

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Typhus, also known as typhus fever, is a group of infectious diseases that include epidemic typhus, scrub typhus and murine typhus.

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UFAW Handbook

The UFAW Handbook is a manual about care of animals used in animal testing.

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Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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Urban area

An urban area is a human settlement with high population density and infrastructure of built environment.

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Vesper mouse

Vesper mice are rodents belonging to a genus Calomys.

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Viscachas or vizcachas are rodents of two genera (Lagidium and Lagostomus) in the family Chinchillidae.

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A vole is a small rodent.

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Weaning is the process of gradually introducing an infant mammal to what will be its adult diet and withdrawing the supply of its mother's milk.

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West Nile virus

West Nile virus (WNV) is a single-stranded RNA virus that causes West Nile fever.

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Whiskers or vibrissae (singular: vibrissa) are a type of mammalian hair that are typically characterised, anatomically, by their large length, large and well-innervated hair follicle, and by having an identifiable representation in the somatosensory cortex of the brain.

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Whisking in animals

Whisking is a behaviour in which the facial whiskers (vibrissae) of an animal are repetitively and rapidly swept back and forth.

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White-footed mouse

The white-footed mouse (Peromyscus leucopus) is a rodent native to North America from Ontario, Quebec, Labrador, and the Maritime Provinces (excluding the island of Newfoundland) to the southwest United States and Mexico.

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Yellow-bellied marmot

The yellow-bellied marmot (Marmota flaviventris), also known as the rock chuck, is a large, stout-bodied ground squirrel in the marmot genus.

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Yellow-pine chipmunk

The yellow-pine chipmunk (Tamias amoenus) is a species of order Rodentia in the family Sciuridae.

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Yersinia pestis

Yersinia pestis (formerly Pasteurella pestis) is a Gram-negative, non-motile rod-shaped coccobacillus, with no spores.

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Jumping mice (subfamily Zapodinae) are a group of mouse-like rodents in North America and China.

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Zapus is a genus of North American jumping mouse.

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Zokors are Asiatic burrowing rodents resembling mole-rats.

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Zygodontomys is a genus of rodent in the tribe Oryzomyini of the family Cricetidae.

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Communication in rodents, Evolution of rodents, Evolutionary history of rodents, Gnawer, Mating strategies of rodents, Order Rodentia, Pest rodent, Rodent Family, Rodent like Mammals, Rodentia, Rodents, Sexual behavior of rodents, Social behavior of rodents.


[1] https://en.wikipedia.org/wiki/Rodent

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