176 relations: African bee, Africanized bee, Allele, Animal husbandry, Annual plant, Archaic human admixture with modern humans, Archaic humans, Aurochs, Australian blacktip shark, Bactrian camel, Banana, Bengal tiger, Biblical apocrypha, Biological pest control, Biology, Bird hybrid, Blacktip shark, Blending inheritance, Book of Enoch, Breed, British finches, Butterfly, Canid hybrid, Carduelis, Centaur, Chimera (genetics), Chimera (mythology), Chloroplast capture, Chromosome, Clymene dolphin, Colias eurytheme, Colias philodice, Common pheasant, Common wheat, Conservation genetics, Coyote, Crop, Crossbreed, Dendraster excentricus, Denisovan, Domestic canary, Donkey, Dromedary, Ecotype, Edible frog, Equid hybrid, Eukaryote, European bison, Extinction, F1 hybrid, ..., Fallen angel, Felid hybrid, Fertilisation, Finch, Fitness (biology), Gamebird hybrids, Gamete, Gene, Genetic admixture, Genetic diversity, Genetic erosion, Genetic pollution, Genetics, Genotype, Giant, Giant salamander, Global warming, Goat, Golden pheasant, Grapefruit, Gray wolf, Green Revolution, Grex (horticulture), Grizzly–polar bear hybrid, Guineafowl, Habitat fragmentation, Harvard University Press, Heliconius, Heterosis, High-yielding variety, Hinny, Hippocampus (mythology), Homo, Horse, Horticulture, Hugo de Vries, Human impact on the environment, Hybrid beasts in folklore, Hybrid camel, Hybrid name, Hybrid seed, Hybrid speciation, Hybrid swarm, Hybrid zone, Hybrot, Inbreeding, Interspecific pregnancy, Introduced species, Introgression, Iris albicans, Lagar Velho 1, Liger, Limenitis arthemis, List of plant hybrids, Loganberry, Lonicera fly, Macropod hybrids, Maize, Marsh frog, Meiosis, Minotaur, Monoculture, Mule, Mutationism, Neanderthal, Neanderthal genome project, Nephilim, Non-reproductive sexual behavior in animals, Northwest Territories, Oenothera lamarckiana, Old Testament, Panthera hybrid, Parthenocarpy, Parthenogenesis, Pasiphaë, Peștera cu Oase, Peppermint, Pheasant, Phenotype, Plant, Plant breeding, Platanus × acerifolia, Platanus occidentalis, Platanus orientalis, Ploidy, Pollen, Pollinator, Polyploid, Pool frog, Population, Portmanteau, Portugal, Purebred, Red junglefowl, Red wolf, Reproductive isolation, Rye, Sand dollar, Sea urchin, Selective breeding, Sexual reproduction, Sheep, Siberian tiger, Species, Sphinx, Spinner dolphin, Steppe bison, Sterility (physiology), Striped dolphin, Strongylocentrotus purpuratus, Sub-Saharan Africa, Subspecies, Taxonomy (biology), Tigon, Transgressive segregation, Trillium cernuum, Trillium grandiflorum, Triticale, True-breeding organism, University of Colorado, Watermelon, Western honey bee, Wheat, Wildlife management, Zebroid, Zygosity. Expand index (126 more) » « Shrink index
The African honey bee (Apis mellifera scutellata) is a subspecies of the Western honey bee.
The Africanized bee, also known as the Africanised honey bee, and known colloquially as "killer bee", is a hybrid of the Western honey bee species (Apis mellifera), produced originally by cross-breeding of the African honey bee (A. m. scutellata), with various European honey bees such as the Italian bee A. m. ligustica and the Iberian bee A. m. iberiensis.
An allele is a variant form of a given gene.
Animal husbandry is the branch of agriculture concerned with animals that are raised for meat, fibre, milk, eggs, or other products.
An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one year, and then dies.
There is evidence for interbreeding between archaic and modern humans during the Middle Paleolithic and early Upper Paleolithic.
A number of varieties of Homo are grouped into the broad category of archaic humans in the period contemporary and predating the emergence of the earliest anatomically modern humans (Homo sapiens) over 315 kya.
The aurochs (or; pl. aurochs, or rarely aurochsen, aurochses), also known as urus or ure (Bos primigenius), is an extinct species of large wild cattle that inhabited Europe, Asia, and North Africa.
The Australian blacktip shark (Carcharhinus tilstoni) is a species of requiem shark, in the family Carcharhinidae, endemic to northern and eastern Australia.
The Bactrian camel (Camelus bactrianus) is a large, even-toed ungulate native to the steppes of Central Asia.
A banana is an edible fruit – botanically a berry – produced by several kinds of large herbaceous flowering plants in the genus Musa.
The Bengal tiger (Panthera tigris tigris) is the most numerous tiger subspecies in Asia, and was estimated at fewer than 2,500 individuals by 2011.
The Biblical apocrypha (from the Greek ἀπόκρυφος, apókruphos, meaning "hidden") denotes the collection of apocryphal ancient books found in some editions of Christian Bibles in a separate section between the Old and New Testaments or as an appendix after the New Testament.
Biological control or biocontrol is a method of controlling pests such as insects, mites, weeds and plant diseases using other organisms.
Biology is the natural science that studies life and living organisms, including their physical structure, chemical composition, function, development and evolution.
A bird hybrid is a bird that has two different species as parents.
The blacktip shark (Carcharhinus limbatus) is a species of requiem shark, and part of the family Carcharhinidae.
Blending inheritance is an obsolete theory in biology from the 19th century.
The Book of Enoch (also 1 Enoch; Ge'ez: መጽሐፈ ሄኖክ mets’iḥāfe hēnoki) is an ancient Jewish religious work, ascribed by tradition to Enoch, the great-grandfather of Noah.
A breed is a specific group of domestic animals having homogeneous appearance (phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species.
The British finches are made up of several species of finch which were formerly very popular as cage birds in Great Britain.
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths.
Canid hybrids are the result of interbreeding between different species of the canine (dog) family (genus Canis).
The genus Carduelis is a group of birds in the finch family Fringillidae.
A centaur (Κένταυρος, Kéntauros), or occasionally hippocentaur, is a mythological creature with the upper body of a human and the lower body and legs of a horse.
A genetic chimerism or chimera (also spelled chimaera) is a single organism composed of cells with distinct genotypes.
The Chimera (or, also Chimaera (Chimæra); Greek: Χίμαιρα, Chímaira "she-goat") was, according to Greek mythology, a monstrous fire-breathing hybrid creature of Lycia in Asia Minor, composed of the parts of more than one animal.
Chloroplast capture is an evolutionary process through which inter-species hybridization and subsequent backcrosses yield a plant with new genetic combination of nuclear and chloroplast genomes.
A chromosome (from Ancient Greek: χρωμόσωμα, chromosoma, chroma means colour, soma means body) is a DNA molecule with part or all of the genetic material (genome) of an organism.
The Clymene dolphin (Stenella clymene), in older texts known as the short-snouted spinner dolphin, is a dolphin endemic to the Atlantic Ocean.
Colias eurytheme, the orange sulphur, also known as the alfalfa butterfly and in its larval stage as the alfalfa caterpillar, is a butterfly of the family Pieridae, where it belongs to the lowland group of "clouded yellows and sulphurs" subfamily Coliadinae.
Colias philodice, the common sulphur or clouded sulphur, is a North American butterfly in the family Pieridae, subfamily Coliadinae.
The common pheasant (Phasianus colchicus) is a bird in the pheasant family (Phasianidae).
Common wheat (Triticum aestivum), also known as bread wheat, is a cultivated wheat species.
Conservation genetics is an interdisciplinary subfield of Population Genetics that aims to understand the dynamics of genes in populations principally to avoid extinction.
The coyote (Canis latrans); from Nahuatl) is a canine native to North America. It is smaller than its close relative, the gray wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecological niche as the golden jackal does in Eurasia, though it is larger and more predatory, and is sometimes called the American jackal by zoologists. The coyote is listed as least concern by the International Union for Conservation of Nature due to its wide distribution and abundance throughout North America, southwards through Mexico, and into Central America. The species is versatile, able to adapt to and expand into environments modified by humans. It is enlarging its range, with coyotes moving into urban areas in the Eastern U.S., and was sighted in eastern Panama (across the Panama Canal from their home range) for the first time in 2013., 19 coyote subspecies are recognized. The average male weighs and the average female. Their fur color is predominantly light gray and red or fulvous interspersed with black and white, though it varies somewhat with geography. It is highly flexible in social organization, living either in a family unit or in loosely knit packs of unrelated individuals. It has a varied diet consisting primarily of animal meat, including deer, rabbits, hares, rodents, birds, reptiles, amphibians, fish, and invertebrates, though it may also eat fruits and vegetables on occasion. Its characteristic vocalization is a howl made by solitary individuals. Humans are the coyote's greatest threat, followed by cougars and gray wolves. In spite of this, coyotes sometimes mate with gray, eastern, or red wolves, producing "coywolf" hybrids. In the northeastern United States and eastern Canada, the eastern coyote (a larger subspecies, though still smaller than wolves) is the result of various historical and recent matings with various types of wolves. Genetic studies show that most North American wolves contain some level of coyote DNA. The coyote is a prominent character in Native American folklore, mainly in the Southwestern United States and Mexico, usually depicted as a trickster that alternately assumes the form of an actual coyote or a man. As with other trickster figures, the coyote uses deception and humor to rebel against social conventions. The animal was especially respected in Mesoamerican cosmology as a symbol of military might. After the European colonization of the Americas, it was reviled in Anglo-American culture as a cowardly and untrustworthy animal. Unlike wolves (gray, eastern, or red), which have undergone an improvement of their public image, attitudes towards the coyote remain largely negative.
A crop is a plant or animal product that can be grown and harvested extensively for profit or subsistence.
A crossbreed is an organism with purebred parents of two different breeds, varieties, or populations.
Eccentric sand dollar (Dendraster excentricus), also known as the sea-cake, biscuit-urchin, western sand dollar, or Pacific sand dollar, is a member of the order Clypeasteroida, better known as sand dollars, a species of flattened, burrowing sea urchins found in the northeast Pacific Ocean from Alaska to Baja California.
The Denisovans or Denisova hominins) are an extinct species or subspecies of archaic humans in the genus Homo.
The domestic canary, often simply known as the canary (Serinus canaria forma domestica), is a domesticated form of the wild canary, a small songbird in the finch family originating from the Macaronesian Islands (The Azores, Madeira and the Canary Islands).
The donkey or ass (Equus africanus asinus) is a domesticated member of the horse family, Equidae.
The dromedary, also called the Arabian camel (Camelus dromedarius), is a large, even-toed ungulate with one hump on its back.
In evolutionary ecology, an ecotype,Greek: οίκος.
The edible frog (Pelophylax kl. esculentus) is a name for a common European frog, also known as the common water frog or green frog (however, this latter term is also used for the North American species Rana clamitans).
Equid hybrids, also called hybrid equines, are created from the crossing of members from the horse family such as a horse, donkey and zebra.
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike Prokaryotes (Bacteria and other Archaea).
The European bison (Bison bonasus), also known as wisent or the European wood bison, is a Eurasian species of bison.
In biology, extinction is the termination of an organism or of a group of organisms (taxon), normally a species.
An F1 hybrid (or filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types.
Fallen angels are angels who were expelled from Heaven.
A felid hybrid is any of a number of hybrid between various species of the cat family, Felidae.
Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, conception, fecundation, syngamy and impregnation, is the fusion of gametes to initiate the development of a new individual organism.
The true finches are small to medium-sized passerine birds in the family Fringillidae.
Fitness (often denoted w or ω in population genetics models) is the quantitative representation of natural and sexual selection within evolutionary biology.
Gamebird hybrids are the result of crossing species of game birds, including ducks, with each other and with domestic poultry.
A gamete (from Ancient Greek γαμετή gamete from gamein "to marry") is a haploid cell that fuses with another haploid cell during fertilization (conception) in organisms that sexually reproduce.
In biology, a gene is a sequence of DNA or RNA that codes for a molecule that has a function.
Genetic admixture occurs when two or more previously isolated and genetically differentiated populations begin interbreeding.
Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species.
Genetic erosion is a process where the limited gene pool of an endangered species diminishes even more when reproductive individuals die off before reproducing low population.
Genetic pollution is a controversial term for uncontrolled gene flow into wild populations.
Genetics is the study of genes, genetic variation, and heredity in living organisms.
The genotype is the part of the genetic makeup of a cell, and therefore of an organism or individual, which determines one of its characteristics (phenotype).
Giants (from Latin and Ancient Greek: "gigas", cognate giga-) are beings of human appearance, but prodigious size and strength common in the mythology and legends of many different cultures.
The Cryptobranchidae are a family of fully aquatic salamanders commonly known as the giant salamanders.
Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system and its related effects.
The domestic goat (Capra aegagrus hircus) is a subspecies of goat domesticated from the wild goat of southwest Asia and Eastern Europe.
The golden pheasant or Chinese pheasant (Chrysolophus pictus) is a gamebird of the order Galliformes (gallinaceous birds) and the family Phasianidae (pheasants).
The grapefruit (Citrus × paradisi) is a subtropical citrus tree known for its sour to semi-sweet, somewhat bitter fruit.
The gray wolf (Canis lupus), also known as the timber wolf,Paquet, P. & Carbyn, L. W. (2003).
The Green Revolution, or Third Agricultural Revolution, refers to a set of research and the development of technology transfer initiatives occurring between the 1930s and the late 1960s (with prequels in the work of the agrarian geneticist Nazareno Strampelli in the 1920s and 1930s), that increased agricultural production worldwide, particularly in the developing world, beginning most markedly in the late 1960s.
The term grex (pl. greges or grexes; abbreviation gx), derived from the Latin noun grex, gregis meaning 'flock', has been coined to expand botanical nomenclature to describe hybrids of orchids, based solely on their parentage.
A grizzly–polar bear hybrid (Super Bear) (also named grolar bear or pizzly bear or nanulak) is a rare ursid hybrid that has occurred both in captivity and in the wild.
Guineafowl (sometimes called "pet speckled hen", or "original fowl" or guineahen) are birds of the family Numididae in the order Galliformes.
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay.
Harvard University Press (HUP) is a publishing house established on January 13, 1913, as a division of Harvard University, and focused on academic publishing.
Heliconius comprises a colorful and widespread genus of brush-footed butterflies commonly known as the longwings or heliconians.
Heterosis, hybrid vigor, or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring.
High-yielding varieties (HYVs) of agricultural crops are usually characterized by a combination of the following traits in contrast to the conventional varieties.
A hinny is a domestic equine hybrid that is the offspring of a male horse, a stallion, and a female donkey, a jenny.
The hippocampus or hippocamp, also hippokampoi (plural: hippocampi or hippocamps; ἱππόκαμπος, from ἵππος, "horse" and κάμπος, "sea monster" at reference.com; compare the nameless monster Campe.), often called a sea-horse in English, is a mythological creature shared by PhoenicianIsrael Antiquities Authority, (retrieved Jan 10 2013), Etruscan, and Greek mythology, though its name has a Greek origin.
Homo (Latin homō "human being") is the genus that encompasses the extant species Homo sapiens (modern humans), plus several extinct species classified as either ancestral to or closely related to modern humans (depending on a species), most notably Homo erectus and Homo neanderthalensis.
The horse (Equus ferus caballus) is one of two extant subspecies of ''Equus ferus''.
Horticulture is the science and art of growing plants (fruits, vegetables, flowers, and any other cultivar).
Hugo Marie de Vries ForMemRS (16 February 1848 – 21 May 1935) was a Dutch botanist and one of the first geneticists.
Human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environments and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans, including global warming, environmental degradation (such as ocean acidification), mass extinction and biodiversity loss, ecological crises, and ecological collapse.
Hybrid beasts appear in the folklore of a variety of cultures as legendary creatures.
A hybrid camel is a hybrid between a Bactrian camel (Camelus bactrianus) and dromedary (Camelus dromedarius).
In botanical nomenclature, a hybrid may be given a hybrid name, which is a special kind of botanical name, but there is no requirement that a hybrid name should be created for plants that are believed to be of hybrid origin.
In agriculture and gardening, hybrid seed is seed produced by cross-pollinated plants.
Hybrid speciation is a form of speciation where hybridization between two different species leads to a new species, reproductively isolated from the parent species.
A hybrid swarm is a population of hybrids that has survived beyond the initial hybrid generation, with interbreeding between hybrid individuals and backcrossing with its parent types.
A hybrid zone exists where the ranges of two interbreeding species or diverged intraspecific lineages meet and cross-fertilize.
A hybrot (short for "hybrid robot") is a cybernetic organism in the form of a robot controlled by a computer consisting of both electronic and biological elements.
Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically.
Interspecific pregnancy (literally pregnancy between species, also called interspecies pregnancy or xenopregnancy)Page 126 in: is the pregnancy involving an embryo or fetus belonging to another species than the carrier.
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.
Introgression, also known as introgressive hybridization, in genetics is the movement of a gene (gene flow) from one species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of its parent species.
Iris albicans, also known as the cemetery iris, white cemetery iris, or the white flag iris, is a species of iris which was planted on graves in Muslim regions and grows in many countries throughout the Middle East and northern Africa.
The Lagar Velho 1, also known as or the Lagar Velho boy,and Lapedo child is a complete prehistorical skeleton found in Portugal, believed to be a hybrid that had a Neanderthal parent and an anatomically modern human parent.
The liger is a hybrid offspring of a male lion (Panthera leo) and a female tiger (Panthera tigris).
Limenitis arthemis, the red-spotted purple or white admiral, is a North American butterfly species in the cosmopolitan genus Limenitis.
This is a list of plant hybrids created intentionally or by chance and exploited commercially in agriculture or horticulture.
The loganberry (Rubus × loganobaccus) is a hybrid of blackberry (Rubus ursinus) and raspberry (''Rubus idaeus''). The plant and the fruit resemble the blackberry more than the raspberry, but the fruit color is a dark red, rather than black as in blackberries.
The Lonicera fly, a hybrid in the genus Rhagoletis, is a North American fruit fly of the family Tephritidae.
Macropod hybrids are hybrids of animals within the family Macropodidae, the family of species that includes kangaroos and wallabies.
Maize (Zea mays subsp. mays, from maíz after Taíno mahiz), also known as corn, is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago.
The marsh frog (Pelophylax ridibundus) is the largest frog native to Europe and belongs to the family of true frogs.
Meiosis (from Greek μείωσις, meiosis, which means lessening) is a specialized type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to them.
In Greek mythology, the Minotaur (Μῑνώταυρος, Minotaurus, Etruscan: Θevrumineś) is a mythical creature portrayed in Classical times with the head of a bull and the body of a man or, as described by Roman poet Ovid, a being "part man and part bull".
Monoculture is the agricultural practice of producing or growing a single crop, plant, or livestock species, variety, or breed in a field or farming system at a time.
A mule is the offspring of a male donkey (jack) and a female horse (mare).
Mutationism is one of several alternatives to evolution by natural selection that have existed both before and after the publication of Charles Darwin's 1859 book, On the Origin of Species.
Neanderthals (also; also Neanderthal Man, taxonomically Homo neanderthalensis or Homo sapiens neanderthalensis) are an extinct species or subspecies of archaic humans in the genus Homo, who lived in Eurasia during at least 430,000 to 38,000 years ago.
The Neanderthal genome project is an effort of a group of scientists to sequence the Neanderthal genome, founded in July 2006.
The Nephilim (nefilim) were the offspring of the "sons of God" and the "daughters of men" before the Deluge, according to narrative of the Bible.
Non-reproductive sexual behavior consists of sexual activities animals participate in that do not lead to the reproduction of the species.
The Northwest Territories (NT or NWT; French: les Territoires du Nord-Ouest, TNO; Athabaskan languages: Denendeh; Inuinnaqtun: Nunatsiaq; Inuktitut: ᓄᓇᑦᓯᐊᖅ) is a federal territory of Canada.
Oenothera lamarckiana (evening primrose or evening-primrose) is a plant species in family Onagraceae, indigenous to North American Plains (all regions of North America).
The Old Testament (abbreviated OT) is the first part of Christian Bibles, based primarily upon the Hebrew Bible (or Tanakh), a collection of ancient religious writings by the Israelites believed by most Christians and religious Jews to be the sacred Word of God.
A Panthera hybrid is a crossbreed between any of the four species tiger, lion, jaguar and leopard in captivity.
In botany and horticulture, parthenocarpy (literally meaning "virgin fruit") is the natural or artificially induced production of fruit without fertilization of ovules, which makes the fruit seedless.
Parthenogenesis (from the Greek label + label) is a natural form of asexual reproduction in which growth and development of embryos occur without fertilization.
In Greek mythology, Pasiphaë (Πασιφάη Pasipháē, "wide-shining" derived from pas "all, for all, of all" and phaos "light") was a queen of Crete.
Peștera cu Oase (meaning "The Cave with Bones") is a system of 12 karstic galleries and chambers located near the city Anina, in the Caraș-Severin county, southwestern Romania, where some of the oldest European early modern human (EEMH) remains, between 37,000 42,000 years old, have been found.
Peppermint (Mentha × piperita, also known as Mentha balsamea Wild.) is a hybrid mint, a cross between watermint and spearmint.
Pheasants are birds of several genera within the subfamily Phasianinae, of the family Phasianidae in the order Galliformes.
A phenotype is the composite of an organism's observable characteristics or traits, such as its morphology, development, biochemical or physiological properties, behavior, and products of behavior (such as a bird's nest).
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.
Plant breeding is the art and science of changing the traits of plants in order to produce desired characteristics.
Platanus × acerifolia, the London plane, London planetree, or hybrid plane, is a tree in the genus Platanus.
Platanus occidentalis, also known as American sycamore, American planetree, occidental plane, and buttonwood, is one of the species of Platanus native to North America.
Platanus orientalis, the Old World sycamore, or Oriental plane, is a large, deciduous tree of the Platanaceae family, growing to or more, and known for its longevity and spreading crown.
Ploidy is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes.
Pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells).
A pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower.
Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes.
The pool frog (Pelophylax lessonae) is a European frog.
In biology, a population is all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding.
A portmanteau or portmanteau word is a linguistic blend of words,, p. 644 in which parts of multiple words or their phones (sounds) are combined into a new word, as in smog, coined by blending smoke and fog, or motel, from motor and hotel.
Portugal, officially the Portuguese Republic (República Portuguesa),In recognized minority languages of Portugal: Portugal is the oldest state in the Iberian Peninsula and one of the oldest in Europe, its territory having been continuously settled, invaded and fought over since prehistoric times.
Purebreds, also called purebreeds, are cultivated varieties or cultivars of an animal species, achieved through the process of selective breeding.
The red junglefowl (Gallus gallus) is a tropical member of the family Phasianidae.
The red wolf (Canis lupus rufus or Canis rufus) also known as the Florida black wolf or Mississippi Valley wolf,Glover, A. (1942),, American Committee for International Wild Life Protection, pp.
The mechanisms of reproductive isolation are a collection of evolutionary mechanisms, behaviors and physiological processes critical for speciation.
Rye (Secale cereale) is a grass grown extensively as a grain, a cover crop and a forage crop.
The term sand dollar (also known as a sea cookie or snapper biscuit in New Zealand, or pansy shell in South Africa) refers to species of extremely flattened, burrowing sea urchins belonging to the order Clypeasteroida.
Sea urchins or urchins are typically spiny, globular animals, echinoderms in the class Echinoidea.
Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
Sexual reproduction is a form of reproduction where two morphologically distinct types of specialized reproductive cells called gametes fuse together, involving a female's large ovum (or egg) and a male's smaller sperm.
Domestic sheep (Ovis aries) are quadrupedal, ruminant mammal typically kept as livestock.
The Siberian tiger (Panthera tigris tigris), also called Amur tiger, is a tiger population inhabiting mainly the Sikhote Alin mountain region in southwest Primorye Province in the Russian Far East.
In biology, a species is the basic unit of classification and a taxonomic rank, as well as a unit of biodiversity, but it has proven difficult to find a satisfactory definition.
A sphinx (Σφίγξ, Boeotian: Φίξ, plural sphinxes or sphinges) is a mythical creature with the head of a human and the body of a lion.
The spinner dolphin (Stenella longirostris) is a small dolphin found in off-shore tropical waters around the world.
The steppe bison or steppe wisent (Bison priscus) – Yukon Beringia Interpretive Centre.
Sterility is the physiological inability to effect sexual reproduction in a living thing, members of whose kind have been produced sexually.
The striped dolphin (Stenella coeruleoalba) is an extensively studied dolphin found in temperate and tropical waters of all the world's oceans.
The purple sea urchin, Strongylocentrotus purpuratus, lives along the eastern edge of the Pacific Ocean extending from Ensenada, Mexico to British Columbia, Canada.
Sub-Saharan Africa is, geographically, the area of the continent of Africa that lies south of the Sahara.
In biological classification, the term subspecies refers to a unity of populations of a species living in a subdivision of the species’s global range and varies from other populations of the same species by morphological characteristics.
Taxonomy is the science of defining and naming groups of biological organisms on the basis of shared characteristics.
A tigon or tiglon is a hybrid cross between a male tiger (Panthera tigris) and a female lion (Panthera leo).
In genetics, transgressive segregation is the formation of extreme phenotypes, or transgressive phenotypes, observed in segregated hybrid populations compared to phenotypes observed in the parental lines.
Trillium cernuum (nodding trillium, nodding wakerobin, or whip-poor-will flower) is a species of Trillium native to northeastern North America, from Newfoundland west to southern Saskatchewan, and south to northern Virginia and Iowa.
Trillium grandiflorum (common names white trillium, large-flowered trillium, great white trillium, white wake-robin, French trille blanc) is a species of flowering plant in the family Melanthiaceae.
Triticale (× Triticosecale), is a hybrid of wheat (Triticum) and rye (Secale) first bred in laboratories during the late 19th century in Scotland and Germany.
A true-breeding organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits (i.e. physically expressed traits) to its offspring of many generations.
The University of Colorado system is a system of public universities in Colorado consisting of four campuses: University of Colorado Boulder, University of Colorado Colorado Springs, University of Colorado Denver in downtown Denver and at the Anschutz Medical Campus in Aurora.
Citrullus lanatus is a plant species in the family Cucurbitaceae, a vine-like (scrambler and trailer) flowering plant originally from Africa.
The western honey bee or European honey bee (Apis mellifera) is the most common of the 7–12 species of honey bee worldwide.
Wheat is a grass widely cultivated for its seed, a cereal grain which is a worldwide staple food.
Wildlife management attempts to balance the needs of wildlife with the needs of people using the best available science.
A zebroid (also zedonk, zorse, zebra mule, zonkey, and zebmule) is the offspring of any cross between a zebra and any other equine: essentially, a zebra hybrid.
Zygosity is the degree of similarity of the alleles for a trait in an organism.
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