1. Interações sexuais entre indivíduos do mesmo sexo: um olhar evolucionista.
- Author
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Cezar, Leonardo, Pisaneschi, Felipe, Varella Valentova, Jaroslava, and Delval, Irene
- Subjects
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HUMAN sexuality , *ANIMAL species , *PARADOX , *HYPOTHESIS , *HOMOSEXUALITY - Abstract
From an evolutionary point of view, same-sex sexual interactions have long been considered a major paradox. This is because they have persisted throughout generations despite, presumably, not offering direct reproductive benefits and, apparently, reducing individual fitness. Nonetheless, same-sex sexual interactions are common in many animal species. This paper reviews some functional hypotheses that seek to solve this evolutionary puzzle: some consider it adaptative, meaning that these behaviors would bring benefits to individuals; others see it as a neutral by-product of other advantageous characteristics. A third branch understand same-sex sexual interactions to be non-adaptative and potentially deleterious to individuals. Finally, this paper discusses a revolutionary hypothesis that, unprecedently, questions whether sexual interactions involving exclusively individuals of the opposite sex are in fact the basal state of sexual behavior. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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