Homosexual behavior in mammals is more frequent in social species and has an evolutionary function

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He homosexual behavior in mammals it occurs more frequently in social species whose individuals interact within a same group. This is stated by a team led by the Experimental Station for Arid Zones (EEZA), of the Higher Council for Scientific Research (CSIC), and with the participation of researchers from the University of Granada and the Desertification Research Center (CIDE), a mixed institution. from the CSIC, the University of Valencia (UV) and the Generalitat Valenciana.

The work, published this Tuesday in the journal ‘Nature Communications’, suggests that sexual behavior between individuals of the same group, prevalent in the case of primatesplays an important role in establishing and maintaining your ties.

Homosexual behaviors in non-human mammals, defined as “transient behaviors that are normally performed at some point during reproduction with a member of the opposite sex, but that are instead directed at members of the same sex,” have attracted attention. from disciplines as diverse as sociology, psychology, zoology, evolutionary biology or behavioral ecology. Since it does not directly contribute to reproduction, if he considers it an evolutionary enigma.

According to researchers, sexual behavior between individuals of the same sex is a common trend in mammals, recorded so far in 5% of species and 50% of families. Furthermore, it is practiced with similar prevalence by males and females.

According to currently available data, it is not randomly distributed among mammalian lineages, but rather tends to be prevalent in some casesespecially in primates, where it has been observed in at least 51 species, from lemurs to apes.

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