Contents 1 In plants 2 In animals 2.1 In humans 3 In microorganisms 3.1 Bacteria 3.2 Archaea 3.3 Protists 3.4 Viruses 4 See also 5 References 6 Further reading


In plants[edit] The primary mating systems in plants are outcrossing (cross-fertilisation), autogamy (self-fertilisation) and apomixis (asexual reproduction without fertilization, but only when arising by modification of sexual function). Mixed mating systems, in which plants use two or even all three mating systems, are not uncommon.[1] A number of models have been used to describe the parameters of plant mating systems. The basic model is the mixed mating model, which is based on the assumption that every fertilisation is either self-fertilisation or completely random cross-fertilisation. More complex models relax this assumption; for example, the effective selfing model recognises that mating may be more common between pairs of closely related plants than between pairs of distantly related plants.[1]


In animals[edit] Chimpanzees have a promiscuous mating system Male and female gorilla, gorillas have a polygynous mating system See also: Animal sexual behaviour § Mating systems, Polygyny threshold model, and Monogamous pairing in animals The following are some of the mating systems generally recognized in animals: Monogamy: One male and one female have an exclusive mating relationship. The term "pair bonding" often implies this. This is associated with one-male, one-female group compositions. There are two types of monogamy: type 1, which is facultative, and type 2, which is obligate. Facultative monogamy occurs when there are very low densities in a species. This means that mating occurs with only a single member of the opposite sex because males and females are very far apart. When a female needs aid from conspecifics in order to have a litter this is obligate monogamy. However, with this, the habitat carrying capacity is small so it means only one female can breed within the habitat.[2] Polygamy: Three types are recognized: Polygyny (the most common polygamous mating system in vertebrates so far studied): One male has an exclusive relationship with two or more females. This is associated with one-male, multi-female group compositions. Many perennial Vespula squamosa (southern yellowjacket) colonies are polygynous.[3] Different types of polygyny exist, such as lek polygyny and resource defense polygyny. Grayling butterflies (Hipparchia semele) engage in resource defense polygyny, where females choose a territorial male based on the best oviposition site.[4] Although most animals opt for only one of these strategies, some exhibit hybrid strategies, such as the bee species, Xylocopa micans.[5] Polyandry: One female has an exclusive relationship with two or more males. This is very rare and is associated with multi-male, multi-female group compositions. Genetic polyandry is found some insect species such as Apis mellifera (the Western Honey Bee), in which a virgin queen will mate with multiple drones during her nuptial flight whereas each drone will die immediately upon mating once. The queen will then store the sperm collected from these multiple matings in her spermatheca to use to fertilize eggs throughout the course of her entire reproductive life. Polygynandry: Polygynandry is a slight variation of this, where two or more males have an exclusive relationship with two or more females; the numbers of males and females don't have to be equal, and in vertebrate species studied so far, the number of males is usually less. This is associated with multi-male, multi-female group compositions. Promiscuity: A member of one sex within the social group mates with any member of the opposite sex. This is associated with multi-male, multi-female group compositions. These mating relationships may or may not be associated with social relationships, in which the sexual partners stay together to become parenting partners. As the alternative term "pair bonding" implies, this is usual in monogamy. In many polyandrous systems, the males and the female stay together to rear the young. In polygynous systems where the number of females paired with each male is low and the male will often stay with one female to help rear the young, while the other females rear their young on their own. In polygynandry, each of the males may assist one female; if all adults help rear all the young, the system is more usually called "communal breeding". In highly polygynous systems, and in promiscuous systems, paternal care of young is rare, or there may be no parental care at all. These descriptions are idealized, and the social partnerships are often easier to observe than the mating relationships. In particular: the relationships are rarely exclusive for all individuals in a species. DNA fingerprinting studies have shown that even in pair-bonding, matings outside the pair (extra-pair copulations) occur with fair frequency, and a significant minority of offspring result from them. However, the offspring that are a result of extra-pair copulations usually exhibit more advantageous genes. These genes can be associated with improvements in appearance, mating, and the functioning of internal body systems.[6][7] some species show different mating systems in different circumstances, for example in different parts of their geographical range, or under different conditions of food availability mixtures of the simple systems described above may occur. Sexual Conflict occurs between individuals of different sexes that have separate or conflicting requirements for optimal mating success. This conflict may lead to competitive adaptations and co-adaptations of one or both of the sexes to maintain mating processes that are beneficial to that sex.[8][9] Intralocus sexual conflict and interlocus sexual conflict describe the genetic influence behind sexual conflict, and are presently recognized as the most basic forms of sexual conflict.[9] In humans[edit] See also: Monogamy, Polygyny, Polyandry, and Polyamory Compared to other vertebrates, where a species usually has a single mating system, human display great variety. Humans also differ by having formal marriages which in some cultures involve negotiation and arrangement between elder relatives. Regarding sexual dimorphism (see the section about animals above), humans are in the intermediate group with moderate sex differences in body size but with relatively large testes. This indicates relatively frequent sperm competition which is supported by reports of extrapair paternity of 2–22% in socially monogamous and polygynous human societies. One estimate is that 83% of human societies are polygynous, 0.05% are polyandrous, and the rest are monogamous. Even the last group may at least in part be genetically polygynous.[10] From an evolutionary standpoint,  females are more prone to practice monogamy because their reproductive success is based on the resources she is able to acquire through reproduction rather than the quantity of offspring she produces. However, men are more likely to practice polygamy because his reproductive success is based on the amount of offsprings he produces, rather than any kind of benefit from parental investment. [11] Polygyny is associated with an increased sharing of subsistence provided by women. This is consistent with the theory that if women raise the children alone, men can concentrate on the mating effort. Polygyny is also associated with greater environmental variability in the form of variability of rainfall. This may increase the differences in the resources available to men. An important association is that polygyny is associated with a higher pathogen load in an area which may make having good genes in a male increasingly important. A high pathogen load also decreases the relative importance of sororal polygyny which may be because it becomes increasingly important to have genetic variability in the offspring (See Major histocompatibility complex and sexual selection).[10] Virtually all the terms used to describe animal mating systems were adopted from social anthropology, where they had been devised to describe systems of marriage. This shows that human sexual behavior is unusually flexible since, in most animal species, one mating system dominates. While there are close analogies between animal mating systems and human marriage institutions, these analogies should not be pressed too far, because in human societies, marriages typically have to be recognized by the entire social group in some way, and there is no equivalent process in animal societies. The temptation to draw conclusions about what is "natural" for human sexual behavior from observations of animal mating systems should be resisted: a socio-biologist observing the kinds of behavior shown by humans in any other species would conclude that all known mating systems were natural for that species, depending on the circumstances or on individual differences.[11] As culture increasingly affects human mating choices, ascertaining what is the 'natural' mating system of the human animal from a zoological perspective becomes increasingly difficult. Some clues can be taken from human anatomy, which is essentially unchanged from the prehistoric past: humans have a large relative size of testes to body mass in comparison to most primates; humans have a large ejaculate volume and sperm count in comparison to other primates; as compared to most primates, humans spend more time in copulation;[12] as compared to most primates, humans copulate with greater frequency; the outward signs of estrous in women (i.e. higher body temperature, breast swelling, sugar cravings, etc.), are often perceived to be less obvious in comparison to the outward signs of ovulation in most other mammals; for most mammals, the estrous cycle and its outward signs bring on mating activity; the majority of female-initiated matings in humans coincides with estrous,[13] but humans copulate throughout the reproductive cycle; after ejaculation/orgasm in males and females, humans release a hormone that has a sedative effect;[14] however human females may remain sexually receptive and may remain in the plateau stage of orgasm if their orgasm has not been completed. Some have suggested that these anatomical factors signify some degree of sperm competition, though as levels of genetic and societal promiscuity are highly varied across cultures,[15] this evidence is far from conclusive.


In microorganisms[edit] Bacteria[edit] Mating in bacteria involves transfer of DNA from one cell to another and incorporation of the transferred DNA into the recipient bacteria’s genome by homologous recombination. Transfer of DNA between bacterial cells can occur in three main ways. First, a bacterium can take up exogenous DNA released into the intervening medium from another bacterium by a process called transformation. DNA can also be transferred from one bacterium to another by the process of transduction, which is mediated by an infecting virus (bacteriophage). The third method of DNA transfer is conjugation, in which a plasmid mediates transfer through direct cell contact between cells. Transformation, unlike transduction or conjugation, depends on numerous bacterial gene products that specifically interact to perform this complex process,[16] and thus transformation is clearly a bacterial adaptation for DNA transfer. In order for a bacterium to bind, take up and recombine donor DNA into its own chromosome, it must first enter a special physiological state termed natural competence. In Bacillus subtilis about 40 genes are required for the development of competence and DNA uptake.[17] The length of DNA transferred during B. subtilis transformation can be as much as a third and up to the whole chromosome.[18][19] Transformation appears to be common among bacterial species, and at least 60 species are known to have the natural ability to become competent for transformation.[20] The development of competence in nature is usually associated with stressful environmental conditions, and seems to be an adaptation for facilitating repair of DNA damage in recipient cells.[21] Archaea[edit] In several species of archaea, mating is mediated by formation of cellular aggregates. Halobacterium volcanii, an extreme halophilic archaeon, forms cytoplasmic bridges between cells that appear to be used for transfer of DNA from one cell to another in either direction.[22] When the hyperthermophilic archaea Sulfolobus solfataricus[23] and Sulfolobus acidocaldarius[24] are exposed to the DNA damaging agents UV irradiation, bleomycin or mitomycin C, species-specific cellular aggregation is induced. Aggregation in S. solfataricus could not be induced by other physical stressors, such as pH or temperature shift,[23] suggesting that aggregation is induced specifically by DNA damage. Ajon et al.[24] showed that UV-induced cellular aggregation mediates chromosomal marker exchange with high frequency in S. acidocaldarius. Recombination rates exceeded those of uninduced cultures by up to three orders of magnitude. Frols et al.[23] and Ajon et al.[24] hypothesized that cellular aggregation enhances species-specific DNA transfer between Sulfolobus cells in order to provide increased repair of damaged DNA by means of homologous recombination. This response appears to be a primitive form of sexual interaction similar to the more well-studied bacterial transformation systems that are also associated with species specific DNA transfer between cells leading to homologous recombinational repair of DNA damage.[25] Protists[edit] Protists are a large group of diverse eukaryotic microorganisms, mainly unicellular animals and plants, that do not form tissues. Eukaryotes emerged in evolution more than 1.5 billion years ago.[26] The earliest eukaryotes were likely protists. Mating and sexual reproduction are widespread among extant eukaryotes. Based on a phylogenetic analysis, Dacks and Roger[27] proposed that facultative sex was present in the common ancestor of all eukaryotes. However, to many biologists it seemed unlikely until recently, that mating and sex could be a primordial and fundamental characteristic of eukaryotes. A principal reason for this view was that mating and sex appeared to be lacking in certain pathogenic protists whose ancestors branched off early from the eukaryotic family tree. However, several of these protists are now known to be capable of, or to recently have had, the capability for meiosis and hence mating. To cite one example, the common intestinal parasite Giardia intestinalis was once considered to be a descendant of a protist lineage that predated the emergence of meiosis and sex. However, G. intestinalis was recently found to have a core set of genes that function in meiosis and that are widely present among sexual eukaryotes.[28] These results suggested that G. intestinalis is capable of meiosis and thus mating and sexual reproduction. Furthermore, direct evidence for meiotic recombination, indicative of mating and sexual reproduction, was also found in G. intestinalis.[29][29] Other protists for which evidence of mating and sexual reproduction has recently been described are parasitic protozoa of the genus Leishmania,[30] Trichomonas vaginalis,[31] and acanthamoeba.[32] Protists generally reproduce asexually under favorable environmental conditions, but tend to reproduce sexually under stressful conditions, such as starvation or heat shock.[25] Viruses[edit] Both animal viruses and bacterial viruses (bacteriophage) are able to undergo mating. When a cell is mixedly infected by two genetically marked viruses, recombinant virus progeny are often observed indicating that mating interaction had occurred at the DNA level. Another manifestation of mating between viral genomes is multiplicity reactivation (MR). MR is the process by which at least two virus genomes, each containing inactivating genome damage, interact with each other in an infected cell to form viable progeny viruses. The genes required for MR in bacteriophage T4 are largely the same as the genes required for allelic recombination.[33] Examples of MR in animal viruses are described in the articles Herpes simplex virus, Influenza A virus, Adenoviridae, Simian virus 40, Vaccinia virus, and Reoviridae.


See also[edit] Sexuality portal r/K selection theory Sexual reproduction


References[edit] ^ a b Brown, A. H. D.; et al. (1989). "Isozyme analysis of plant mating systems". In Soltis, D. E.; Soltis, P. S. Isozymes in Plant Biology. Portland: Dioscorides Press. pp. 73–86.  ^ Kleiman, Devra G. (1977). "Monogamy in Mammals". The Quarterly Review of Biology. 52 (1): 39–69. doi:10.1086/409721. Retrieved 14 October 2017. ^ Pickett, K. M., Osborne, D. M., Wahl, D., and Wenzel, J. W. (2001). "An Enormous Nest of Vespula squamosa from Florida, the Largest Social Was Nest Reported from North America, with Notes on Colony Cycle and Reproduction", "Journal of the New York Entomological Society", 2001. ^ Dreisig, H. (1995-02-01). "Thermoregulation and flight activity in territorial male graylings, Hipparchia semele (Satyridae), and large skippers, Ochlodes venata (Hesperiidae)". Oecologia. 101 (2): 169–176. doi:10.1007/BF00317280. ISSN 0029-8549.  ^ McAuslane, H. J.; Vinson, S. B.; Williams, H. J. (1990-06-01). "Change in mandibular and mesosomal gland contents of maleXylocopa micans (Hymenoptera: Anthophoridae) associated with mating system". Journal of Chemical Ecology. 16 (6): 1877–1885. doi:10.1007/BF01020501. ISSN 0098-0331.  ^ <ref name="Bekoff">Bekoff, Marc (2004). Encyclopedia of Animal Behavior. Westport: Greenwood Press. pp. 889–891. ISBN 0-313-32747-5.  ^ Howie, James (January 2017). "Female Sneak Copulation: In: Encyclopedia of Evolutionary Psychological Science". Researchgate. Retrieved October 20, 2017.  ^ Parker, G. A. (28 February 2006). "Sexual conflict over mating and fertilization: an overview". Philosophical Transactions of the Royal Society B: Biological Sciences. 361 (1466): 235–259. doi:10.1098/rstb.2005.1785.  ^ a b Yasukawa, Ken; Tang-Martínez, Zuleyma (2014). Animal behavior : how and why animals do the things they do. California, USA: Praeger. p. 174. ISBN 978-0-313-39870-4.  ^ a b The Oxford Handbook of Evolutionary Psychology, Edited by Robin Dunbar and Louise Barret, Oxford University Press, 2007, Chapter 30 Ecological and socio-cultural impacts on mating and marriage systems by Bobbi S. Low ^ a b Cartwright, John. H (2002). Evolutionary Explanations of Human Behaviour. New York, NY: Taylor and Franis e-Library. p. 19. ISBN 0-203-47064-8.  ^ De Waal, Frans (March 1996). "Bonobo Sex and Society: The behavior of a close relative challenges assumptions about male supremacy in human evolution". Scientific American. Retrieved October 21, 2017.  ^ Beach, Frank (1976). "Sexual attractivity, proceptivity, and receptivity in female mammals". Hormones and Behaviour. 7 (1): 105–138. Retrieved 20 October 2017.  ^ Esch, Tobias; Stefano, George (June 2005). "The Neurobiology of Love". Neuro endocrinology letters. 26 (3): 175–92. PMID 15990719.  ^ "Archived copy" (PDF). Archived from the original (PDF) on 2014-03-02. Retrieved 2014-02-26.  ^ Chen I, Dubnau D (2004). "DNA uptake during bacterial transformation". Nat. Rev. Microbiol. 2 (3): 241–9. doi:10.1038/nrmicro844. PMID 15083159.  ^ Solomon JM, Grossman AD (1996). "Who's competent and when: regulation of natural genetic competence in bacteria". Trends Genet. 12 (4): 150–5. doi:10.1016/0168-9525(96)10014-7. PMID 8901420.  ^ Akamatsu T, Taguchi H (2001). "Incorporation of the whole chromosomal DNA in protoplast lysates into competent cells of Bacillus subtilis". Biosci. Biotechnol. Biochem. 65 (4): 823–9. doi:10.1271/bbb.65.823. PMID 11388459.  ^ Saito Y, Taguchi H, Akamatsu T (2006). "Fate of transforming bacterial genome following incorporation into competent cells of Bacillus subtilis: a continuous length of incorporated DNA". J. Biosci. Bioeng. 101 (3): 257–62. doi:10.1263/jbb.101.257. PMID 16716928.  ^ Johnsborg O, Eldholm V, Håvarstein LS (2007). "Natural genetic transformation: prevalence, mechanisms and function". Res. Microbiol. 158 (10): 767–78. doi:10.1016/j.resmic.2007.09.004. PMID 17997281.  ^ Bernstein H, Bernstein C, Michod RE (2012). DNA repair as the primary adaptive function of sex in bacteria and eukaryotes. Chapter 1: pp.1-49 in: DNA Repair: New Research, Sakura Kimura and Sora Shimizu editors. Nova Sci. Publ., Hauppauge, N.Y. ISBN 978-1-62100-808-8 https://www.novapublishers.com/catalog/product_info.php?products_id=31918 ^ Rosenshine I, Tchelet R, Mevarech M (1989). "The mechanism of DNA transfer in the mating system of an archaebacterium". Science. 245 (4924): 1387–9. doi:10.1126/science.2818746. PMID 2818746.  ^ a b c Fröls S, Ajon M, Wagner M, Teichmann D, Zolghadr B, Folea M, Boekema EJ, Driessen AJ, Schleper C, Albers SV (2008). "UV-inducible cellular aggregation of the hyperthermophilic archaeon Sulfolobus solfataricus is mediated by pili formation". Mol. Microbiol. 70 (4): 938–52. doi:10.1111/j.1365-2958.2008.06459.x. PMID 18990182.  ^ a b c Ajon M, Fröls S, van Wolferen M, Stoecker K, Teichmann D, Driessen AJ, Grogan DW, Albers SV, Schleper C (2011). "UV-inducible DNA exchange in hyperthermophilic archaea mediated by type IV pili". Mol. Microbiol. 82 (4): 807–17. doi:10.1111/j.1365-2958.2011.07861.x. PMID 21999488.  ^ a b Bernstein H and Bernstein C (2013). Evolutionary Origin and Adaptive Function of Meiosis. In Meiosis: Bernstein C and Bernstein H, editors. ISBN 978-953-51-1197-9, InTech, http://www.intechopen.com/books/meiosis/evolutionary-origin-and-adaptive-function-of-meiosis ^ Javaux EJ, Knoll AH, Walter MR (2001). "Morphological and ecological complexity in early eukaryotic ecosystems". Nature. 412 (6842): 66–9. doi:10.1038/35083562. PMID 11452306.  ^ Dacks J, Roger AJ (1999). "The first sexual lineage and the relevance of facultative sex". J. Mol. Evol. 48 (6): 779–83. doi:10.1007/pl00013156. PMID 10229582.  ^ Ramesh MA, Malik SB, Logsdon JM (2005). "A phylogenomic inventory of meiotic genes; evidence for sex in Giardia and an early eukaryotic origin of meiosis". Curr. Biol. 15 (2): 185–91. doi:10.1016/j.cub.2005.01.003. PMID 15668177.  ^ a b Cooper MA, Adam RD, Worobey M, Sterling CR (2007). "Population genetics provides evidence for recombination in Giardia". Curr. Biol. 17 (22): 1984–8. doi:10.1016/j.cub.2007.10.020. PMID 17980591.  ^ Akopyants NS, Kimblin N, Secundino N, Patrick R, Peters N, Lawyer P, Dobson DE, Beverley SM, Sacks DL (2009). "Demonstration of genetic exchange during cyclical development of Leishmania in the sand fly vector". Science. 324 (5924): 265–8. doi:10.1126/science.1169464. PMC 2729066 . PMID 19359589.  ^ Malik SB, Pightling AW, Stefaniak LM, Schurko AM, Logsdon JM (2008). "An expanded inventory of conserved meiotic genes provides evidence for sex in Trichomonas vaginalis". PLoS ONE. 3 (8): e2879. doi:10.1371/journal.pone.0002879. PMC 2488364 . PMID 18663385.  ^ Khan NA, Siddiqui R (2015). 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Further reading[edit] Marlowe, F.W. (2003). The Mating System of Foragers in the Standard Cross-Cultural Sample. Cross-Cultural Research, 37, 282-306. Full text v t e Animal sexual behaviour General Sexual selection Sexual reproduction evolution reproductive system Courtship display sexual ornamentation handicap principle sexy son hypothesis Fisherian runaway Mating systems mate choice mating call mating plug lek mating Copulation pseudocopulation Fertilisation internal external sperm competition traumatic insemination penile spines Modes monogamy promiscuity polyandry polygyny polygynandry semelparity and iteroparity opportunistic hermaphroditism cuckoldry seasonal synchrony synchronous spawning Sexual dimorphism anisogamy oogamy Bateman's principle bimaturism cannibalism coercion Sexual conflict interlocus intralocus Interspecies breeding Non-reproductive behavior Fisher's principle Invertebrates Arthropods crab spider scorpion beetle insect butterfly Cephalopods octopus Cnidaria sea anemone jellyfish coral Echinoderms Gastropods apophallation love dart Sponge Worms earthworm penis fencing Fish Fish reproduction Spawning strategies Polyandry in fish Eels Salmon run Seahorse Sharks Amphibians Sexual selection frogs Frog reproduction Salamanders Reptiles Sexual selection in scaled reptiles lizards snakes side-blotched lizard Crocodilians Tuatara Birds Sexual selection Breeding behaviour golden eagle seabirds Homosexual behavior Mammals Sexual selection rut Lordosis behavior Homosexual behavior Canid African wild dog coyote dingo domestic dog gray wolf red fox spotted hyena Dolphin Elephant European badger Felid lion tiger cheetah domestic cat Fossa Hippopotamus Marsupial kangaroo Pinnipeds walrus Primates human bonobo gorilla olive baboon mandrill ringtailed lemur sexual swelling Raccoon Rodent Short-beaked echidna Retrieved from "https://en.wikipedia.org/w/index.php?title=Mating_system&oldid=817609584" Categories: EcologyEthologyFertilityMating systemsSociobiologySexual selectionHidden categories: Articles needing additional references from April 2007All articles needing additional references


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Wikipedia:VerifiabilityHelp:Introduction To Referencing With Wiki Markup/1Help:Maintenance Template RemovalAnimalsMatingMonogamyPolygamyPolygynyPolyandryPolygynandryPromiscuityMate ChoiceSexual SelectionOutcrossingSociobiologyMarriageOutcrossingAutogamyApomixisMixed Mating ModelEffective Selfing ModelEnlargeChimpanzeeEnlargeGorillaAnimal Sexual BehaviourPolygyny Threshold ModelMonogamous Pairing In AnimalsMonogamyPair BondPolygamyPolygyny In NatureVertebratesVespula SquamosaGrayling (butterfly)Xylocopa MicansPolyandry In NatureWestern Honey BeePolygynandryPromiscuityCommunal BreedingDNA FingerprintingSexual ConflictIntralocus Sexual ConflictInterlocus Sexual ConflictMonogamyPolygynyPolyandryPolyamoryVertebrateMarriageMonogamyPolygamyRainfallPathogenSororal PolygynyMajor Histocompatibility Complex And Sexual SelectionSocial AnthropologyMarriageCopulateEstrous CycleSperm CompetitionBacteriaGenomeHomologous RecombinationExogenous DNATransformation (genetics)Transduction (genetics)Bacterial ConjugationPlasmidAdaptationNatural CompetenceBacillus SubtilisArchaeaHalobacteriumHalophileHyperthermophileSulfolobus SolfataricusSulfolobus AcidocaldariusUltravioletBleomycinMitomycinsHomologous RecombinationEukaryoteMicroorganismUnicellular OrganismTissue (biology)PathogenMeiosisGiardia LambliaLeishmaniaTrichomonas VaginalisAcanthamoebaBacteriophageHerpes Simplex VirusInfluenza A VirusAdenoviridaeSimian Virus 40Vaccinia VirusReoviridaePortal:SexualityR/K Selection TheorySexual ReproductionSoltis, P. S.Digital Object IdentifierInternational Standard Serial NumberDigital Object IdentifierInternational Standard Serial NumberInternational Standard Book NumberSpecial:BookSources/0-313-32747-5Digital Object IdentifierInternational Standard Book NumberSpecial:BookSources/978-0-313-39870-4International Standard Book NumberSpecial:BookSources/0-203-47064-8PubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierInternational Standard Book NumberSpecial:BookSources/978-1-62100-808-8Digital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierInternational Standard Book NumberSpecial:BookSources/978-953-51-1197-9Digital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed IdentifierDigital Object IdentifierPubMed CentralPubMed IdentifierDigital Object IdentifierPubMed CentralPubMed IdentifierDigital Object IdentifierPubMed IdentifierPubMed CentralPubMed IdentifierTemplate:Animal Sexual BehaviorTemplate Talk:Animal Sexual BehaviorAnimal Sexual BehaviourAnimal Sexual BehaviourSexual SelectionSexual ReproductionEvolution Of Sexual ReproductionReproductive SystemCourtship DisplayBiological OrnamentHandicap PrincipleSexy Son HypothesisFisherian RunawayMating SystemsMate ChoiceMating CallMating PlugLek MatingCopulation (zoology)PseudocopulationFertilisationInternal FertilizationExternal FertilizationSperm CompetitionTraumatic InseminationPenile SpinesModes Of ReproductionMonogamous Pairing In AnimalsPromiscuityPolyandry In NaturePolygyny In NaturePolygynandrySemelparity And IteroparityOpportunistic BreederHermaphroditeCuckoldSeasonal BreederReproductive SynchronySynchronous SpawningSexual DimorphismAnisogamyOogamyBateman's PrincipleSexual BimaturismSexual CannibalismSexual CoercionSexual ConflictInterlocus Sexual ConflictIntralocus Sexual ConflictHybrid (biology)Non-reproductive Sexual Behavior In AnimalsFisher's PrincipleAnimal Sexual BehaviourArthropodCrabSpiderScorpionBeetleInsectButterflyCephalopodOctopusCnidariaSea AnemoneJellyfishCoralEchinodermMating Of GastropodsApophallationLove DartSpongeEarthwormPenis FencingFishFish ReproductionSpawn (biology)Polyandry In FishEel Life HistorySalmon RunSeahorseSharkAmphibianSexual Selection In AmphibiansSexual Selection In FrogsFrogSalamanderReptileSexual Selection In Scaled ReptilesSexual Selection In LizardsSexual Selection In SnakesUta StansburianaCrocodiliaTuataraBirdSexual Selection In BirdsBirdsReproduction And Life Cycle Of The Golden EagleSeabird Breeding BehaviorList Of Birds Displaying Homosexual BehaviorMammalian ReproductionSexual Selection In MammalsRut (mammalian Reproduction)Lordosis BehaviorList Of Mammals Displaying Homosexual BehaviorCanidaeAfrican Wild DogCoyoteSexual Behavior Of DingoesCanine ReproductionGray WolfRed FoxSpotted HyenaDolphinElephantEuropean BadgerFelidLionTigerSexual Behavior Of CheetahsCatFossa (animal)HippopotamusMarsupialKangarooPinnipedWalrusHuman Sexual ActivityBonoboGorillaOlive BaboonMandrillRingtailed LemurSexual SwellingSexual Behavior Of RaccoonsRodentShort-beaked EchidnaHelp:CategoryCategory:EcologyCategory:EthologyCategory:FertilityCategory:Mating SystemsCategory:SociobiologyCategory:Sexual SelectionCategory:Articles Needing Additional References From April 2007Category:All Articles Needing Additional ReferencesDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer