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Animal sexual behaviour

Index Animal sexual behaviour

Animal sexual behaviour takes many different forms, including within the same species. [1]

Table of Contents

  1. 254 relations: Abdomen, Against Nature?, Alfred Kinsey, Alternative mating strategy, Amphibian, Amphipoda, Anal sex, Anglerfish, Anisogamy, Ape, Apoica flavissima, Aquarium, Artificial vagina, Atheriniformes, Atrophy, Australasian wren, Autofellatio, Baboon, Banana slug, Bat, Bateman's principle, Behavioral ecology, Biologist, Biology and sexual orientation, Bisexuality, Blacktip shark, Body orifice, Bonobo, Bottlenose dolphin, Brown bear, Bruce effect, Calcium carbonate, Camelidae, Canidae, Canine reproduction, Cape ground squirrel, Chimpanzee, Chitin, Clam, Classical conditioning, Clitoris, Clownfish, Cnemidophorus, Columbidae, Competition (biology), Copepod, Copulation (zoology), Coral, Coral reef, Coral reef fish, ... Expand index (204 more) »

  2. Animal sexuality
  3. Mating
  4. Reproduction in animals

Abdomen

The abdomen (colloquially called the belly, tummy, midriff, tucky or stomach) is the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates.

See Animal sexual behaviour and Abdomen

Against Nature?

Against Nature? was an exhibition on homosexuality in animals made by the Natural History Museum at the University of Oslo, Norway.

See Animal sexual behaviour and Against Nature?

Alfred Kinsey

Alfred Charles Kinsey (June 23, 1894 – August 25, 1956) was an American sexologist, biologist, and professor of entomology and zoology who, in 1947, founded the Institute for Sex Research at Indiana University, now known as the Kinsey Institute for Research in Sex, Gender, and Reproduction.

See Animal sexual behaviour and Alfred Kinsey

Alternative mating strategy

An alternative mating strategy is a strategy used by male or female animals, often with distinct phenotypes, that differs from the prevailing mating strategy of their sex. Animal sexual behaviour and alternative mating strategy are ethology and reproduction in animals.

See Animal sexual behaviour and Alternative mating strategy

Amphibian

Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia.

See Animal sexual behaviour and Amphibian

Amphipoda

Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies.

See Animal sexual behaviour and Amphipoda

Anal sex

Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure.

See Animal sexual behaviour and Anal sex

Anglerfish

The anglerfish are fish of the teleost order Lophiiformes.

See Animal sexual behaviour and Anglerfish

Anisogamy

283x283px Anisogamy is a form of sexual reproduction that involves the union or fusion of two gametes that differ in size and/or form.

See Animal sexual behaviour and Anisogamy

Ape

Apes (collectively Hominoidea) are a clade of Old World simians native to sub-Saharan Africa and Southeast Asia (though they were more widespread in Africa, most of Asia, and Europe in prehistory), which together with its sister group Cercopithecidae form the catarrhine clade, cladistically making them monkeys.

See Animal sexual behaviour and Ape

Apoica flavissima

Apoica flavissima is a paper wasp found primarily in South America.

See Animal sexual behaviour and Apoica flavissima

Aquarium

An aquarium (aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed.

See Animal sexual behaviour and Aquarium

Artificial vagina

An artificial vagina is a device designed to imitate the vagina as well as sometimes the vulva.

See Animal sexual behaviour and Artificial vagina

Atheriniformes

The Atheriniformes, also known as the silversides, are an order of ray-finned fishes that includes the Old World silversides and several less-familiar families, including the unusual Phallostethidae.

See Animal sexual behaviour and Atheriniformes

Atrophy

Atrophy is the partial or complete wasting away of a part of the body.

See Animal sexual behaviour and Atrophy

Australasian wren

The Australasian wrens are a family, Maluridae, of small, insectivorous passerine birds endemic to Australia and New Guinea.

See Animal sexual behaviour and Australasian wren

Autofellatio

Autofellatio is a form of masturbation involving the oral stimulation of one's own penis.

See Animal sexual behaviour and Autofellatio

Baboon

Baboons are primates comprising the genus Papio, one of the 23 genera of Old World monkeys, in the family Cercopithecidae.

See Animal sexual behaviour and Baboon

Banana slug

Banana slugs (Ariolimax) are a genus of North American terrestrial slugs in the family Ariolimacidae.

See Animal sexual behaviour and Banana slug

Bat

Bats are flying mammals of the order Chiroptera.

See Animal sexual behaviour and Bat

Bateman's principle

Bateman's principle, in evolutionary biology, is that in most species, variability in reproductive success (or reproductive variance) is greater in males than in females.

See Animal sexual behaviour and Bateman's principle

Behavioral ecology

Behavioral ecology, also spelled behavioural ecology, is the study of the evolutionary basis for animal behavior due to ecological pressures. Animal sexual behaviour and Behavioral ecology are ethology.

See Animal sexual behaviour and Behavioral ecology

Biologist

A biologist is a scientist who conducts research in biology.

See Animal sexual behaviour and Biologist

Biology and sexual orientation

The relationship between biology and sexual orientation is a subject of on-going research.

See Animal sexual behaviour and Biology and sexual orientation

Bisexuality

Bisexuality is a romantic or sexual attraction or behavior toward both males and females (gender binary), to more than one gender, or to both people of the same gender and different genders.

See Animal sexual behaviour and Bisexuality

Blacktip shark

The blacktip shark (Carcharhinus limbatus) is a species of requiem shark, and part of the family Carcharhinidae.

See Animal sexual behaviour and Blacktip shark

Body orifice

A body orifice is any opening in the body of an animal.

See Animal sexual behaviour and Body orifice

Bonobo

The bonobo (Pan paniscus), also historically called the pygmy chimpanzee (less often the dwarf chimpanzee or gracile chimpanzee), is an endangered great ape and one of the two species making up the genus Pan (the other being the common chimpanzee, Pan troglodytes).

See Animal sexual behaviour and Bonobo

Bottlenose dolphin

The bottlenose dolphin is a toothed whale in the genus Tursiops. They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins.

See Animal sexual behaviour and Bottlenose dolphin

Brown bear

The brown bear (Ursus arctos) is a large bear native to Eurasia and North America.

See Animal sexual behaviour and Brown bear

Bruce effect

The Bruce effect, or pregnancy block, is the tendency for female rodents to terminate their pregnancies following exposure to the scent of an unfamiliar male. Animal sexual behaviour and Bruce effect are ethology.

See Animal sexual behaviour and Bruce effect

Calcium carbonate

Calcium carbonate is a chemical compound with the chemical formula.

See Animal sexual behaviour and Calcium carbonate

Camelidae

Camelids are members of the biological family Camelidae, the only currently living family in the suborder Tylopoda.

See Animal sexual behaviour and Camelidae

Canidae

Canidae (from Latin, canis, "dog") is a biological family of dog-like carnivorans, colloquially referred to as dogs, and constitutes a clade.

See Animal sexual behaviour and Canidae

Canine reproduction

Canine reproduction is the process of sexual reproduction in domestic dogs, wolves, coyotes and other canine species.

See Animal sexual behaviour and Canine reproduction

Cape ground squirrel

The Cape ground squirrel or South African ground squirrel (Geosciurus 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.

See Animal sexual behaviour and Cape ground squirrel

Chimpanzee

The chimpanzee (Pan troglodytes), also simply known as the chimp, is a species of great ape native to the forests and savannahs of tropical Africa.

See Animal sexual behaviour and Chimpanzee

Chitin

Chitin (C8H13O5N)n is a long-chain polymer of ''N''-acetylglucosamine, an amide derivative of glucose.

See Animal sexual behaviour and Chitin

Clam

Clam is a common name for several kinds of bivalve molluscs.

See Animal sexual behaviour and Clam

Classical conditioning

Classical conditioning (also respondent conditioning and Pavlovian conditioning) is a behavioral procedure in which a biologically potent stimulus (e.g. food, a puff of air on the eye, a potential rival) is paired with a neutral stimulus (e.g. the sound of a musical triangle).

See Animal sexual behaviour and Classical conditioning

Clitoris

In amniotes, the clitoris (or;: clitorises or clitorides) is a female sex organ.

See Animal sexual behaviour and Clitoris

Clownfish

Clownfish or anemonefish are fishes from the subfamily Amphiprioninae in the family Pomacentridae.

See Animal sexual behaviour and Clownfish

Cnemidophorus

Cnemidophorus is a genus of lizards in the family Teiidae.

See Animal sexual behaviour and Cnemidophorus

Columbidae

Columbidae is a bird family consisting of doves and pigeons.

See Animal sexual behaviour and Columbidae

Competition (biology)

Competition is an interaction between organisms or species in which both require a resource that is in limited supply (such as food, water, or territory). Animal sexual behaviour and Competition (biology) are ethology.

See Animal sexual behaviour and Competition (biology)

Copepod

Copepods (meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat.

See Animal sexual behaviour and Copepod

Copulation (zoology)

In zoology, copulation is animal sexual behavior in which a male introduces sperm into the female's body, especially directly into her reproductive tract. Animal sexual behaviour and copulation (zoology) are animal sexuality and ethology.

See Animal sexual behaviour and Copulation (zoology)

Coral

Corals are colonial marine invertebrates within the class Anthozoa of the phylum Cnidaria.

See Animal sexual behaviour and Coral

Coral reef

A coral reef is an underwater ecosystem characterized by reef-building corals.

See Animal sexual behaviour and Coral reef

Coral reef fish

Coral reef fish are fish which live amongst or in close relation to coral reefs.

See Animal sexual behaviour and Coral reef fish

Courtship display

A courtship display is a set of display behaviors in which an animal, usually a male, attempts to attract a mate; the mate exercises choice, so sexual selection acts on the display. Animal sexual behaviour and courtship display are animal sexuality, ethology and mating.

See Animal sexual behaviour and Courtship display

Cuckold

A cuckold is the husband of an adulterous wife; the wife of an adulterous husband is a cuckquean.

See Animal sexual behaviour and Cuckold

Denmark

Denmark (Danmark) is a Nordic country in the south-central portion of Northern Europe.

See Animal sexual behaviour and Denmark

Display (zoology)

Display behaviour is a set of ritualized behaviours that enable an animal to communicate to other animals (typically of the same species) about specific stimuli. Animal sexual behaviour and Display (zoology) are animal sexuality.

See Animal sexual behaviour and Display (zoology)

Dog behavior

Dog behavior is the internally coordinated responses of individuals or groups of domestic dogs to internal and external stimuli. Animal sexual behaviour and dog behavior are ethology.

See Animal sexual behaviour and Dog behavior

Dolphin

A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale).

See Animal sexual behaviour and Dolphin

Dominance hierarchy

In the zoological field of ethology, a dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal social groups interact, creating a ranking system. Animal sexual behaviour and dominance hierarchy are ethology.

See Animal sexual behaviour and Dominance hierarchy

Dopamine

Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is a neuromodulatory molecule that plays several important roles in cells.

See Animal sexual behaviour and Dopamine

Duck

Duck is the common name for numerous species of waterfowl in the family Anatidae.

See Animal sexual behaviour and Duck

Earthworm

An earthworm is a soil-dwelling terrestrial invertebrate that belongs to the phylum Annelida.

See Animal sexual behaviour and Earthworm

Egg

An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches.

See Animal sexual behaviour and Egg

Egg cell

The egg cell or ovum (ova) is the female reproductive cell, or gamete, in most anisogamous organisms (organisms that reproduce sexually with a larger, female gamete and a smaller, male one).

See Animal sexual behaviour and Egg cell

Emotion in animals

Emotion is defined as any mental experience with high intensity and high hedonic content. Animal sexual behaviour and Emotion in animals are ethology.

See Animal sexual behaviour and Emotion in animals

Emperor penguin

The emperor penguin (Aptenodytes forsteri) is the tallest and heaviest of all living penguin species and is endemic to Antarctica.

See Animal sexual behaviour and Emperor penguin

Enzyme

Enzymes are proteins that act as biological catalysts by accelerating chemical reactions.

See Animal sexual behaviour and Enzyme

Estrous cycle

The estrous cycle (originally) is a set of recurring physiological changes induced by reproductive hormones in females of mammalian subclass Theria.

See Animal sexual behaviour and Estrous cycle

European pied flycatcher

The European pied flycatcher (Ficedula hypoleuca) is a small passerine bird in the Old World flycatcher family.

See Animal sexual behaviour and European pied flycatcher

Evolution

Evolution is the change in the heritable characteristics of biological populations over successive generations.

See Animal sexual behaviour and Evolution

Evolutionarily stable strategy

An evolutionarily stable strategy (ESS) is a strategy (or set of strategies) that is impermeable when adopted by a population in adaptation to a specific environment, that is to say it cannot be displaced by an alternative strategy (or set of strategies) which may be novel or initially rare.

See Animal sexual behaviour and Evolutionarily stable strategy

Extended female sexuality

Extended female sexuality is where the female of a species mates despite being infertile. Animal sexual behaviour and Extended female sexuality are animal sexuality.

See Animal sexual behaviour and Extended female sexuality

External fertilization

External fertilization is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. Animal sexual behaviour and External fertilization are reproduction in animals.

See Animal sexual behaviour and External fertilization

Extra-pair copulation

Extra-pair copulation (EPC) is a mating behaviour in monogamous species. Animal sexual behaviour and Extra-pair copulation are mating and reproduction in animals.

See Animal sexual behaviour and Extra-pair copulation

Female

An organism's sex is female (symbol: ♀) if it produces the ovum (egg cell), the type of gamete (sex cell) that fuses with the male gamete (sperm cell) during sexual reproduction.

See Animal sexual behaviour and Female

Fertility

Fertility in colloquial terms refers the ability to have offspring.

See Animal sexual behaviour and Fertility

Flatworm

The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

See Animal sexual behaviour and Flatworm

Fluctuating asymmetry

Fluctuating asymmetry (FA), is a form of biological asymmetry, along with anti-symmetry and direction asymmetry.

See Animal sexual behaviour and Fluctuating asymmetry

Forage fish

Forage fish, also called prey fish or bait fish, are small pelagic fish that feed on plankton and other tiny organisms.

See Animal sexual behaviour and Forage fish

Fossa (animal)

The fossa (Cryptoprocta ferox; or) is a slender, long-tailed, cat-like mammal that is endemic to Madagascar.

See Animal sexual behaviour and Fossa (animal)

Gamete

A gamete (ultimately) is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually.

See Animal sexual behaviour and Gamete

Gastropoda

Gastropods, commonly known as slugs and snails, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda.

See Animal sexual behaviour and Gastropoda

Gene

In biology, the word gene has two meanings.

See Animal sexual behaviour and Gene

Gene pool

The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species.

See Animal sexual behaviour and Gene pool

Genetic divergence

Genetic divergence is the process in which two or more populations of an ancestral species accumulate independent genetic changes (mutations) through time, often leading to reproductive isolation and continued mutation even after the populations have become reproductively isolated for some period of time, as there is not any genetic exchange anymore.

See Animal sexual behaviour and Genetic divergence

Giant panda

The giant panda (Ailuropoda melanoleuca), also known as the panda bear or simply panda, is a bear species endemic to China.

See Animal sexual behaviour and Giant panda

Giraffe

The giraffe is a large African hoofed mammal belonging to the genus Giraffa.

See Animal sexual behaviour and Giraffe

Goat

The goat or domestic goat (Capra hircus) is a species of domesticated goat-antelope that is mostly kept as livestock.

See Animal sexual behaviour and Goat

Gonad

A gonad, sex gland, or reproductive gland is a mixed gland that produces the gametes and sex hormones of an organism.

See Animal sexual behaviour and Gonad

Gonochorism

In biology, gonochorism is a sexual system where there are two sexes and each individual organism is either male or female.

See Animal sexual behaviour and Gonochorism

Goose

A goose (geese) is a bird of any of several waterfowl species in the family Anatidae.

See Animal sexual behaviour and Goose

Greater short-nosed fruit bat

The greater short-nosed fruit bat (Cynopterus sphinx), or short-nosed Indian fruit bat, is a species of megabat in the family Pteropodidae found in South and Southeast Asia.

See Animal sexual behaviour and Greater short-nosed fruit bat

Green Porno

Green Porno is a series of short films on animal sexual behaviour.

See Animal sexual behaviour and Green Porno

Grey red-backed vole

The grey red-backed vole or the grey-sided vole (Craseomys rufocanus) is a species of vole.

See Animal sexual behaviour and Grey red-backed vole

Grouper

Groupers are fish of any of a number of genera in the subfamily Epinephelinae of the family Serranidae, in the order Perciformes.

See Animal sexual behaviour and Grouper

Hammerhead shark

The hammerhead sharks are a group of sharks that form the family Sphyrnidae, named for the unusual and distinctive form of their heads, which are flattened and laterally extended into a cephalofoil (a T-shape or "hammer").

See Animal sexual behaviour and Hammerhead shark

Hans Thewissen

Johannes Gerardus Marie (Hans) Thewissen is a Dutch-American paleontologist known for his significant contributions to the field of whale evolution.

See Animal sexual behaviour and Hans Thewissen

Haplotype

A haplotype (haploid genotype) is a group of alleles in an organism that are inherited together from a single parent.

See Animal sexual behaviour and Haplotype

Harassment

Harassment covers a wide range of behaviors of offensive nature.

See Animal sexual behaviour and Harassment

Harem (zoology)

A harem is an animal group consisting of one or two males, a number of females, and their offspring. Animal sexual behaviour and harem (zoology) are ethology.

See Animal sexual behaviour and Harem (zoology)

Herbivore

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

See Animal sexual behaviour and Herbivore

Hermaphrodite

A hermaphrodite is a sexually reproducing organism that produces both male and female gametes.

See Animal sexual behaviour and Hermaphrodite

Hermatypic coral

Hermatypic corals are those corals in the order Scleractinia which build reefs by depositing hard calcareous material for their skeletons, forming the stony framework of the reef.

See Animal sexual behaviour and Hermatypic coral

Herring

Herring are forage fish, mostly belonging to the family of Clupeidae.

See Animal sexual behaviour and Herring

Hippopotamus

The hippopotamus (hippopotamuses or hippopotami; Hippopotamus amphibius), also shortened to hippo (hippos), further qualified as the common hippopotamus, Nile hippopotamus, or river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa.

See Animal sexual behaviour and Hippopotamus

Hominidae

The Hominidae, whose members are known as the great apes or hominids, are a taxonomic family of primates that includes eight extant species in four genera: Pongo (the Bornean, Sumatran and Tapanuli orangutan); Gorilla (the eastern and western gorilla); Pan (the chimpanzee and the bonobo); and Homo, of which only modern humans (''Homo sapiens'') remain.

See Animal sexual behaviour and Hominidae

Homosexual behavior in animals

Various non-human animal species exhibit behavior that can be interpreted as homosexual or bisexual, often referred to as same-sex sexual behavior (SSSB) by scientists. Animal sexual behaviour and homosexual behavior in animals are animal sexuality and ethology.

See Animal sexual behaviour and Homosexual behavior in animals

Hormone

A hormone (from the Greek participle ὁρμῶν, "setting in motion") is a class of signaling molecules in multicellular organisms that are sent to distant organs or tissues by complex biological processes to regulate physiology and behavior.

See Animal sexual behaviour and Hormone

Horse

The horse (Equus ferus caballus) is a domesticated, one-toed, hoofed mammal.

See Animal sexual behaviour and Horse

Horse behavior

Horse behavior is best understood from the view that horses are prey animals with a well-developed fight-or-flight response. Animal sexual behaviour and horse behavior are ethology.

See Animal sexual behaviour and Horse behavior

House mouse

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

See Animal sexual behaviour and House mouse

Human

Humans (Homo sapiens, meaning "thinking man") or modern humans are the most common and widespread species of primate, and the last surviving species of the genus Homo.

See Animal sexual behaviour and Human

Human evolution

Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family that includes all the great apes.

See Animal sexual behaviour and Human evolution

Hybrid (biology)

In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction.

See Animal sexual behaviour and Hybrid (biology)

Inbreeding avoidance

Inbreeding avoidance, or the inbreeding avoidance hypothesis, is a concept in evolutionary biology that refers to the prevention of the deleterious effects of inbreeding.

See Animal sexual behaviour and Inbreeding avoidance

Inbreeding depression

Inbreeding depression is the reduced biological fitness that has the potential to result from inbreeding (the breeding of related individuals).

See Animal sexual behaviour and Inbreeding depression

Incest

Incest is human sexual activity between family members or close relatives.

See Animal sexual behaviour and Incest

Induced ovulation (animals)

Induced ovulation occurs in some animal species that do not ovulate cyclically or spontaneously.

See Animal sexual behaviour and Induced ovulation (animals)

Infanticide (zoology)

In animals, infanticide involves the intentional killing of young offspring by a mature animal of the same species. Animal sexual behaviour and infanticide (zoology) are ethology.

See Animal sexual behaviour and Infanticide (zoology)

Insect

Insects (from Latin insectum) are hexapod invertebrates of the class Insecta.

See Animal sexual behaviour and Insect

Internal fertilization

Internal fertilization is the union of an egg and sperm cell during sexual reproduction inside the female body. Animal sexual behaviour and Internal fertilization are reproduction in animals.

See Animal sexual behaviour and Internal fertilization

Jacanidae

The jacanas (sometimes referred to as Jesus birds or lily trotters) are a group of tropical waders in the family Jacanidae.

See Animal sexual behaviour and Jacanidae

Japanese marten

The Japanese marten (Martes melampus) is a marten species endemic to Japan.

See Animal sexual behaviour and Japanese marten

Jonathan Balcombe

Jonathan Balcombe (born 28 February 1959) is an ethologist and author.

See Animal sexual behaviour and Jonathan Balcombe

Kin recognition

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

See Animal sexual behaviour and Kin recognition

Lactation

Lactation describes the secretion of milk from the mammary glands and the period of time that a mother lactates to feed her young.

See Animal sexual behaviour and Lactation

Land snail

A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails.

See Animal sexual behaviour and Land snail

Larva

A larva (larvae) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage.

See Animal sexual behaviour and Larva

Lek mating

A lek is an aggregation of male animals gathered to engage in competitive displays and courtship rituals, known as lekking, to entice visiting females which are surveying prospective partners with which to mate. Animal sexual behaviour and lek mating are ethology and reproduction in animals.

See Animal sexual behaviour and Lek mating

Lepidoptera

Lepidoptera or lepidopterans is an order of winged insects that includes butterflies and moths.

See Animal sexual behaviour and Lepidoptera

Limax maximus

Limax maximus (literally, "biggest slug"), known by the common names great grey slug and leopard slug, is a species of slug in the family Limacidae, the keeled slugs.

See Animal sexual behaviour and Limax maximus

Lion

The lion (Panthera leo) is a large cat of the genus Panthera, native to Africa and India.

See Animal sexual behaviour and Lion

List of animals displaying homosexual behavior

For these animals, there is documented evidence of homosexual behavior of one or more of the following kinds: sex, courtship, affection, pair bonding, or parenting, as noted in researcher and author Bruce Bagemihl's 1999 book Biological Exuberance: Animal Homosexuality and Natural Diversity.

See Animal sexual behaviour and List of animals displaying homosexual behavior

List of authors of names published under the ICZN

This is a list of notable zoologists who have published names of new taxa under the International Code of Zoological Nomenclature.

See Animal sexual behaviour and List of authors of names published under the ICZN

Lordosis behavior

Lordosis behavior, also known as mammalian lordosis (Greek lordōsis, from lordos "bent backward") or presenting, is the naturally occurring body posture for sexual receptivity to copulation present in females of most mammals including rodents, elephants, cats, and humans. Animal sexual behaviour and lordosis behavior are animal sexuality and ethology.

See Animal sexual behaviour and Lordosis behavior

Love dart

A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcareous or chitinous dart which some hermaphroditic land snails and slugs create. Animal sexual behaviour and love dart are animal sexuality and mating.

See Animal sexual behaviour and Love dart

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.

See Animal sexual behaviour and Major urinary proteins

Mammal

A mammal is a vertebrate animal of the class Mammalia.

See Animal sexual behaviour and Mammal

Mating

In biology, mating is the pairing of either opposite-sex or hermaphroditic organisms for the purposes of sexual reproduction. Animal sexual behaviour and mating are ethology and reproduction in animals.

See Animal sexual behaviour and Mating

Mating plug

A mating plug, also known as a copulation plug, sperm plug, vaginal plug, or sphragis (Latin, from Greek σφραγίς sphragis, "a seal"), is a gelatinous secretion used in the mating of some species. Animal sexual behaviour and mating plug are animal sexuality and mating.

See Animal sexual behaviour and Mating plug

Meerkat

The meerkat (Suricata suricatta) or suricate is a small mongoose found in southern Africa.

See Animal sexual behaviour and Meerkat

Melanocortin

The melanocortins are a family of neuropeptide hormones which are the ligands of the melanocortin receptors.

See Animal sexual behaviour and Melanocortin

Metro (British newspaper)

Metro is the United Kingdom's highest-circulation freesheet tabloid newspaper.

See Animal sexual behaviour and Metro (British newspaper)

Miscarriage

Miscarriage, also known in medical terms as a spontaneous abortion, is the death and expulsion of an embryo or fetus before it can survive independently.

See Animal sexual behaviour and Miscarriage

Monkey

Monkey is a common name that may refer to most mammals of the infraorder Simiiformes, also known as the simians.

See Animal sexual behaviour and Monkey

Monogamy in animals

Monogamous pairing in animals refers to the natural history of mating systems in which species pair bond to raise offspring. Animal sexual behaviour and Monogamy in animals are animal sexuality and ethology.

See Animal sexual behaviour and Monogamy in animals

Montane vole

The montane vole (Microtus montanus) is a species of vole native to the western United States and Canada.

See Animal sexual behaviour and Montane vole

Mouse

A mouse (mice) is a small rodent.

See Animal sexual behaviour and Mouse

Mythimna unipuncta

Mythimna unipuncta, the true armyworm moth, white-speck moth, common armyworm, or rice armyworm, is a species of moth in the family Noctuidae.

See Animal sexual behaviour and Mythimna unipuncta

Naked mole-rat

The naked mole-rat (Heterocephalus glaber), also known as the sand puppy, is a burrowing rodent native to the Horn of Africa and parts of Kenya, notably in Somali regions.

See Animal sexual behaviour and Naked mole-rat

Natural History Museum at the University of Oslo

The Natural History Museum at the University of Oslo (Naturhistorisk museum, NHM) is Norway's oldest and largest museum of natural history.

See Animal sexual behaviour and Natural History Museum at the University of Oslo

Necrophilia

Necrophilia, also known as necrophilism, necrolagnia, necrocoitus, necrochlesis, and thanatophilia, is sexual attraction or acts involving corpses.

See Animal sexual behaviour and Necrophilia

Neurohormone

A neurohormone is any hormone produced and released by neuroendocrine cells (also called neurosecretory cells) into the blood.

See Animal sexual behaviour and Neurohormone

Non-reproductive sexual behavior in animals

Animal non-reproductive sexual behavior encompasses sexual activities that non-human animals participate in which do not lead to the reproduction of the species. Animal sexual behaviour and non-reproductive sexual behavior in animals are animal sexuality.

See Animal sexual behaviour and Non-reproductive sexual behavior in animals

Norepinephrine

Norepinephrine (NE), also called noradrenaline (NA) or noradrenalin, is an organic chemical in the catecholamine family that functions in the brain and body as a hormone, neurotransmitter and neuromodulator.

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Observer bias

Observer bias is one of the types of detection bias and is defined as any kind of systematic divergence from accurate facts during observation and the recording of data and information in studies.

See Animal sexual behaviour and Observer bias

Odor

An odor (American English) or odour (Commonwealth English; see spelling differences) is caused by one or more volatilized chemical compounds that are generally found in low concentrations that humans and many animals can perceive via their sense of smell.

See Animal sexual behaviour and Odor

Ophioblennius atlanticus

Ophioblennius atlanticus, also known as the redlip blenny and the horseface blenny, is a species of combtooth blenny, family Blenniidae, found primarily in the western central Atlantic ocean.

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Opportunistic breeder

Flexible or opportunistic breeders mate whenever the conditions of their environment become favorable.

See Animal sexual behaviour and Opportunistic breeder

Orgasm

Orgasm (from Greek ὀργασμός,; "excitement, swelling") or sexual climax (or simply climax) is the sudden discharge of accumulated sexual excitement during the sexual response cycle, resulting in rhythmic, involuntary muscular contractions in the pelvic region characterized by sexual pleasure. Animal sexual behaviour and Orgasm are animal sexuality.

See Animal sexual behaviour and Orgasm

Ovulation

Ovulation is the release of eggs from the ovaries.

See Animal sexual behaviour and Ovulation

Oxford University Press

Oxford University Press (OUP) is the publishing house of the University of Oxford.

See Animal sexual behaviour and Oxford University Press

Oxytocin

Oxytocin is a peptide hormone and neuropeptide normally produced in the hypothalamus and released by the posterior pituitary.

See Animal sexual behaviour and Oxytocin

Pair bond

In biology, a pair bond is the strong affinity that develops in some species between a mating pair, often leading to the production and rearing of young and potentially a lifelong bond. Animal sexual behaviour and pair bond are animal sexuality and ethology.

See Animal sexual behaviour and Pair bond

Panda pornography

Panda pornography (or panda porn) refers generally to movies depicting mating pandas, intended to promote sexual arousal in captive giant pandas. Animal sexual behaviour and panda pornography are animal sexuality, ethology and mating.

See Animal sexual behaviour and Panda pornography

Paraphilia

A paraphilia is an experience of recurring or intense sexual arousal to atypical objects, places, situations, fantasies, behaviors, or individuals.

See Animal sexual behaviour and Paraphilia

Parasympathetic nervous system

The parasympathetic nervous system (PSNS) is one of the three divisions of the autonomic nervous system, the others being the sympathetic nervous system and the enteric nervous system.

See Animal sexual behaviour and Parasympathetic nervous system

Parental care

Parental care is a behavioural and evolutionary strategy adopted by some animals, involving a parental investment being made to the evolutionary fitness of offspring. Animal sexual behaviour and parental care are ethology.

See Animal sexual behaviour and Parental care

Parrotfish

Parrotfish are a group of fish species traditionally regarded as a family (Scaridae), but now often treated as a subfamily (Scarinae) or tribe (Scarini) of the wrasses (Labridae).

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Parthenogenesis

Parthenogenesis (from the Greek παρθένος|translit.

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Patricia Adair Gowaty

Patricia Adair Gowaty is an American evolutionary biologist.

See Animal sexual behaviour and Patricia Adair Gowaty

PBS

The Public Broadcasting Service (PBS) is an American public broadcaster and non-commercial, free-to-air television network based in Crystal City, Virginia.

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Pearson Education

Pearson Education, known since 2011 as simply Pearson, is the educational publishing and services subsidiary of the international corporation Pearson plc.

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Pelvic thrust

The pelvic thrust is the thrusting motion of the pelvic region, which is used for a variety of activities, such as dance, exercise, or sexual activity.

See Animal sexual behaviour and Pelvic thrust

Penile spines

Many mammalian species have developed keratinized penile spines along the glans and/or shaft, which may be involved in sexual selection.

See Animal sexual behaviour and Penile spines

Penis

A penis (penises or penes) is a male sex organ that is used to inseminate female or hermaphrodite animals during copulation.

See Animal sexual behaviour and Penis

Penis fencing

Penis fencing is a mating behavior engaged in by many species of flatworm, such as Pseudobiceros hancockanus. Animal sexual behaviour and Penis fencing are mating.

See Animal sexual behaviour and Penis fencing

Perineum

The perineum (perineums or perinea) in mammals is the space between the anus and the genitals.

See Animal sexual behaviour and Perineum

Pheromone

A pheromone is a secreted or excreted chemical factor that triggers a social response in members of the same species.

See Animal sexual behaviour and Pheromone

Pig

The pig (Sus domesticus), also called swine (swine) or hog, is an omnivorous, domesticated, even-toed, hoofed mammal.

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Planarian

Planarians (triclads) are free-living flatworms of the class Turbellaria, order Tricladida, which includes hundreds of species, found in freshwater, marine, and terrestrial habitats.

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Planula

A planula is the free-swimming, flattened, ciliated, bilaterally symmetric larval form of various cnidarian species and also in some species of Ctenophores, which are not related to cnidarians at all.

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Ploidy

Ploidy is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes.

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Poecilia

Poecilia is a genus of fishes in the family Poeciliidae of the order Cyprinodontiformes.

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Polyandry in animals

In behavioral ecology, polyandry is a class of mating system where one female mates with several males in a breeding season. Animal sexual behaviour and polyandry in animals are animal sexuality, ethology and reproduction in animals.

See Animal sexual behaviour and Polyandry in animals

Polygamy

Polygamy (from Late Greek πολυγαμία, "state of marriage to many spouses") is the practice of marrying multiple spouses.

See Animal sexual behaviour and Polygamy

Polygynandry

Polygynandry is a mating system in which both males and females have multiple mating partners during a breeding season.

See Animal sexual behaviour and Polygynandry

Polygyny in animals

Polygyny (from Neo-Greek) is a mating system in which one male lives and mates with multiple females but each female only mates with a few males. Animal sexual behaviour and Polygyny in animals are animal sexuality, ethology and reproduction in animals.

See Animal sexual behaviour and Polygyny in animals

Polygyny threshold model

The polygyny threshold model is an explanation of polygyny, the mating of one male of a species with more than one female. Animal sexual behaviour and polygyny threshold model are ethology.

See Animal sexual behaviour and Polygyny threshold model

Polyploidy

Polyploidy is a condition in which the cells of an organism have more than one pair of (homologous) chromosomes.

See Animal sexual behaviour and Polyploidy

Prairie vole

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

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Primary production

In ecology, primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide.

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Primate

Primates is an order of mammals, which is further divided into the strepsirrhines, which include lemurs, galagos, and lorisids; and the haplorhines, which include tarsiers; and the simians, which include monkeys and apes.

See Animal sexual behaviour and Primate

Prostitution among animals

Prostitution among animals is the phenomenon in which non-human animals practice transactional sex. Animal sexual behaviour and Prostitution among animals are animal sexuality.

See Animal sexual behaviour and Prostitution among animals

Pseudo-penis

A pseudo-penis is any structure found on an animal that, while superficially appearing to be a penis, is derived from a different developmental path.

See Animal sexual behaviour and Pseudo-penis

Pseudobiceros bedfordi

Pseudobiceros bedfordi (common names Persian carpet flatworm and Bedford's flatworm) is a species of flatworm in the family Pseudocerotidae.

See Animal sexual behaviour and Pseudobiceros bedfordi

R/K selection theory

In ecology, selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring.

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Receptor antagonist

A receptor antagonist is a type of receptor ligand or drug that blocks or dampens a biological response by binding to and blocking a receptor rather than activating it like an agonist.

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Reproduction

Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents.

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Reproductive success

Reproductive success is an individual's production of offspring per breeding event or lifetime.

See Animal sexual behaviour and Reproductive success

Reproductive synchrony

Reproductive synchrony is a term used in evolutionary biology and behavioral ecology. Animal sexual behaviour and Reproductive synchrony are ethology.

See Animal sexual behaviour and Reproductive synchrony

Reptile

Reptiles, as commonly defined, are a group of tetrapods with usually an ectothermic ('cold-blooded') metabolism and amniotic development.

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Rhabdomys

Rhabdomys is a largely Southern African genus of muroid rodents slightly larger than house mice.

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Rhesus macaque

The rhesus macaque (Macaca mulatta), colloquially rhesus monkey, is a species of Old World monkey.

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Robert Sapolsky

Robert Morris Sapolsky (born April 6, 1957) is an American academic, neuroscientist, and primatologist.

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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.

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Scientific American

Scientific American, informally abbreviated SciAm or sometimes SA, is an American popular science magazine.

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Sea urchin

Sea urchins or urchins, alternatively known as sea hedgehogs, are typically spiny, globular animals, echinoderms in the class Echinoidea.

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Seahorse

A seahorse (also written sea-horse and sea horse) is any of 46 species of small marine bony fish in the genus Hippocampus.

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Seasonal breeder

Seasonal breeders are animal species that successfully mate only during certain times of the year. Animal sexual behaviour and Seasonal breeder are ethology and reproduction in animals.

See Animal sexual behaviour and Seasonal breeder

Semen collection

Semen collection refers to the process of obtaining semen from human males or other animals with the use of various methods, for the purposes of artificial insemination, or medical study (usually in fertility clinics).

See Animal sexual behaviour and Semen collection

Senegal bushbaby

The Senegal bushbaby (Galago senegalensis), also known as the Senegal galago, the lesser galago or the lesser bush baby, is a small, nocturnal primate, a member of the galago family Galagidae.

See Animal sexual behaviour and Senegal bushbaby

Sequential hermaphroditism

Sequential hermaphroditism (called dichogamy in botany) is one of the two types of hermaphroditism, the other type being simultaneous hermaphroditism.

See Animal sexual behaviour and Sequential hermaphroditism

Sex organ

A sex organ, also known as a reproductive organ, is a part of an organism that is involved in sexual reproduction.

See Animal sexual behaviour and Sex organ

Sex position

A sex position is a positioning of the bodies that people use to engage in sexual intercourse or other sexual activities.

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Sexual arousal

Sexual arousal (also known as sexual excitement) describes the physiological and psychological responses in preparation for sexual intercourse or when exposed to sexual stimuli.

See Animal sexual behaviour and Sexual arousal

Sexual coercion among animals

Sexual coercion among animals is the use of violence, threats, harassment, and other tactics to help them forcefully copulate. Animal sexual behaviour and Sexual coercion among animals are animal sexuality.

See Animal sexual behaviour and Sexual coercion among animals

Sexual dimorphism

Sexual dimorphism is the condition where sexes of the same species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction.

See Animal sexual behaviour and Sexual dimorphism

Sexual reproduction

Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (haploid reproductive cells, such as a sperm or egg cell) with a single set of chromosomes combines with another gamete to produce a zygote that develops into an organism composed of cells with two sets of chromosomes (diploid).

See Animal sexual behaviour and Sexual reproduction

Sexual stimulation

Sexual stimulation, in everyday usage, is anything that leads to, enhances and maintains sexual arousal, and may lead to orgasm.

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Sheep

Sheep (sheep) or domestic sheep (Ovis aries) are a domesticated, ruminant mammal typically kept as livestock.

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Shoaling and schooling

In biology, any group of fish that stay together for social reasons are shoaling, and if the group is swimming in the same direction in a coordinated manner, they are schooling.

See Animal sexual behaviour and Shoaling and schooling

Sibling

A sibling is a relative that shares at least one parent with the other person.

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Situational sexual behavior

Situational sexual behavior is a type of sexual behavior which differs from that which the person normally exhibits, due to a social environment that in some way permits, encourages, or compels the behavior in question.

See Animal sexual behaviour and Situational sexual behavior

Sociobiology

Sociobiology is a field of biology that aims to explain social behavior in terms of evolution. Animal sexual behaviour and Sociobiology are ethology.

See Animal sexual behaviour and Sociobiology

Spawn (biology)

Spawn is the eggs and sperm released or deposited into water by aquatic animals. Animal sexual behaviour and Spawn (biology) are reproduction in animals.

See Animal sexual behaviour and Spawn (biology)

Speciation

Speciation is the evolutionary process by which populations evolve to become distinct species.

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Species

A species (species) is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction.

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Sperm

Sperm (sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one).

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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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Spermatozoon

A spermatozoon (also spelled spermatozoön;: spermatozoa) is a motile sperm cell, or moving form of the haploid cell that is the male gamete.

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Splendid fairywren

The splendid fairywren (Malurus splendens) is a passerine bird in the Australasian wren family, Maluridae.

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Spotted hyena

The spotted hyena (Crocuta crocuta), also known as the laughing hyena, is a hyena species, currently classed as the sole extant member of the genus Crocuta, native to sub-Saharan Africa.

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Squalius alburnoides

Squalius alburnoides is a species of fish in the family Cyprinidae. It is found in Portugal and Spain. Its natural habitats are rivers and intermittent rivers. It may be threatened by habitat loss. This species is a highly peculiar fish in regard to its evolution and reproduction. It has been derived from hybridisation between females of Squalius pyrenaicus and males of another, unknown cyprinid species, and maintains the genomes of both parental species.

See Animal sexual behaviour and Squalius alburnoides

Stimulus–response model

The stimulus–response model is a conceptual framework in psychology that describes how individuals respond to external stimuli.

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Stoat

The stoat (Mustela erminea), also known as the Eurasian ermine or ermine, is a species of mustelid native to Eurasia and the northern regions of North America.

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Sundance TV

Sundance TV (formerly known as Sundance Channel) is an American pay television channel owned by AMC Networks that launched on February 1, 1996.

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Superb fairywren

The superb fairywren (Malurus cyaneus) is a passerine bird in the Australasian wren family, Maluridae, and is common and familiar across south-eastern Australia.

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Swan

Swans are birds of the genus Cygnus within the family Anatidae.

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Sympathetic nervous system

The sympathetic nervous system (SNS) is one of the three divisions of the autonomic nervous system, the others being the parasympathetic nervous system and the enteric nervous system.

See Animal sexual behaviour and Sympathetic nervous system

Taboo

A taboo, also spelled tabu, is a social group's ban, prohibition, or avoidance of something (usually an utterance or behavior) based on the group's sense that it is excessively repulsive, offensive, sacred, or allowed only for certain people.

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Teleost

Teleostei (Greek teleios "complete" + osteon "bone"), members of which are known as teleosts, is, by far, the largest infraclass in the class Actinopterygii, the ray-finned fishes, and contains 96% of all extant species of fish.

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The Daily Telegraph

The Daily Telegraph, known online and elsewhere as The Telegraph, is a British daily broadsheet newspaper published in London by Telegraph Media Group and distributed in the United Kingdom and internationally.

See Animal sexual behaviour and The Daily Telegraph

Tibetan macaque

The Tibetan macaque (Macaca thibetana), also known as the Chinese stump-tailed macaque or Milne-Edwards' macaque, is a macaque species found from eastern Tibet east to Guangdong and north to Shaanxi in China.

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Toad

Toad is a common name for certain frogs, especially of the family Bufonidae, that are characterized by dry, leathery skin, short legs, and large bumps covering the parotoid glands.

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Tool use by non-humans

Tool use by non-humans is a phenomenon in which a non-human animal uses any kind of tool in order to achieve a goal such as acquiring food and water, grooming, combat, defence, communication, recreation or construction. Animal sexual behaviour and tool use by non-humans are ethology.

See Animal sexual behaviour and Tool use by non-humans

Traumatic insemination

Traumatic insemination, also known as hypodermic insemination, is the mating practice in some species of invertebrates in which the male pierces the female's abdomen with his aedeagus and injects his sperm through the wound into her abdominal cavity (hemocoel). Animal sexual behaviour and Traumatic insemination are animal sexuality and mating.

See Animal sexual behaviour and Traumatic insemination

Vagina

In mammals and other animals, the vagina (vaginas or vaginae) is the elastic, muscular reproductive organ of the female genital tract.

See Animal sexual behaviour and Vagina

Vasopressin

Human vasopressin, also called antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin, is a hormone synthesized from the AVP gene as a peptide prohormone in neurons in the hypothalamus, and is converted to AVP.

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White-fronted bee-eater

The white-fronted bee-eater (Merops bullockoides) is a species of bee-eater widely distributed in sub-equatorial Africa.

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Why Zebras Don't Get Ulcers

Why Zebras Don't Get Ulcers is a 1994 (2nd ed. 1998, 3rd ed. 2004) book by Stanford University biologist Robert M. Sapolsky.

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Wolf

The wolf (Canis lupus;: wolves), also known as the gray wolf or grey wolf, is a large canine native to Eurasia and North America.

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Wrasse

The wrasses are a family, Labridae, of marine fish, many of which are brightly colored.

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X chromosome

The X chromosome is one of the two sex chromosomes in many organisms, including mammals, and is found in both males and females.

See Animal sexual behaviour and X chromosome

Zygiella x-notata

Zygiella x-notata, sometimes known as the missing sector orb weaver or the silver-sided sector spider,, British Arachnological Society, 2016.

See Animal sexual behaviour and Zygiella x-notata

Zygosity

Zygosity (the noun, zygote, is from the Greek "yoked," from "yoke") is the degree to which both copies of a chromosome or gene have the same genetic sequence.

See Animal sexual behaviour and Zygosity

See also

Animal sexuality

Mating

Reproduction in animals

References

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

Also known as Animal Sexuality, Animal sexual activity, Animal sexual behavior, Animals mating, Copulatory behavior of mammals, Copulatory jump, Homosexual necrophilia in animals, Inter-species sex, Mammalian sexual behavior, Mating animals, Mating behavior of mammals, Mating mammals, Mating of animals, Non-Human Animal Sexual Behavior, Non-Human Animal Sexuality, Non-human animal sexual behaviour, Origins in Humanity in Cross-breeding, Primate sexuality, Rape flight, Receptive to breeding, Receptive to mating, Reproductive behavior of animals, Reproductive sexual behavior in animals, Sexual behavior in animals, Sexual behavior of animals, Sexual behavior of non-human animals, Sexual behaviour in animals, Sexual motivation in non-human animals, Sexual pleasure in non-human animals, Sexual receptiveness, Sexual receptivity, Sexually receptive.

, Courtship display, Cuckold, Denmark, Display (zoology), Dog behavior, Dolphin, Dominance hierarchy, Dopamine, Duck, Earthworm, Egg, Egg cell, Emotion in animals, Emperor penguin, Enzyme, Estrous cycle, European pied flycatcher, Evolution, Evolutionarily stable strategy, Extended female sexuality, External fertilization, Extra-pair copulation, Female, Fertility, Flatworm, Fluctuating asymmetry, Forage fish, Fossa (animal), Gamete, Gastropoda, Gene, Gene pool, Genetic divergence, Giant panda, Giraffe, Goat, Gonad, Gonochorism, Goose, Greater short-nosed fruit bat, Green Porno, Grey red-backed vole, Grouper, Hammerhead shark, Hans Thewissen, Haplotype, Harassment, Harem (zoology), Herbivore, Hermaphrodite, Hermatypic coral, Herring, Hippopotamus, Hominidae, Homosexual behavior in animals, Hormone, Horse, Horse behavior, House mouse, Human, Human evolution, Hybrid (biology), Inbreeding avoidance, Inbreeding depression, Incest, Induced ovulation (animals), Infanticide (zoology), Insect, Internal fertilization, Jacanidae, Japanese marten, Jonathan Balcombe, Kin recognition, Lactation, Land snail, Larva, Lek mating, Lepidoptera, Limax maximus, Lion, List of animals displaying homosexual behavior, List of authors of names published under the ICZN, Lordosis behavior, Love dart, Major urinary proteins, Mammal, Mating, Mating plug, Meerkat, Melanocortin, Metro (British newspaper), Miscarriage, Monkey, Monogamy in animals, Montane vole, Mouse, Mythimna unipuncta, Naked mole-rat, Natural History Museum at the University of Oslo, Necrophilia, Neurohormone, Non-reproductive sexual behavior in animals, Norepinephrine, Observer bias, Odor, Ophioblennius atlanticus, Opportunistic breeder, Orgasm, Ovulation, Oxford University Press, Oxytocin, Pair bond, Panda pornography, Paraphilia, Parasympathetic nervous system, Parental care, Parrotfish, Parthenogenesis, Patricia Adair Gowaty, PBS, Pearson Education, Pelvic thrust, Penile spines, Penis, Penis fencing, Perineum, Pheromone, Pig, Planarian, Planula, Ploidy, Poecilia, Polyandry in animals, Polygamy, Polygynandry, Polygyny in animals, Polygyny threshold model, Polyploidy, Prairie vole, Primary production, Primate, Prostitution among animals, Pseudo-penis, Pseudobiceros bedfordi, R/K selection theory, Receptor antagonist, Reproduction, Reproductive success, Reproductive synchrony, Reptile, Rhabdomys, Rhesus macaque, Robert Sapolsky, Rodent, Scientific American, Sea urchin, Seahorse, Seasonal breeder, Semen collection, Senegal bushbaby, Sequential hermaphroditism, Sex organ, Sex position, Sexual arousal, Sexual coercion among animals, Sexual dimorphism, Sexual reproduction, Sexual stimulation, Sheep, Shoaling and schooling, Sibling, Situational sexual behavior, Sociobiology, Spawn (biology), Speciation, Species, Sperm, Sperm competition, Spermatozoon, Splendid fairywren, Spotted hyena, Squalius alburnoides, Stimulus–response model, Stoat, Sundance TV, Superb fairywren, Swan, Sympathetic nervous system, Taboo, Teleost, The Daily Telegraph, Tibetan macaque, Toad, Tool use by non-humans, Traumatic insemination, Vagina, Vasopressin, White-fronted bee-eater, Why Zebras Don't Get Ulcers, Wolf, Wrasse, X chromosome, Zygiella x-notata, Zygosity.