Vasey Paul L
Department of Psychology and Neuroscience, University of Lethbridge, 4401 University Drive, Lethbridge, Alberta, Canada T1K 3M4.
Arch Sex Behav. 2002 Feb;31(1):51-62. doi: 10.1023/a:1014079117864.
Whether animals ever exhibit a preference for same-sex sexual partners is a subject of debate. Japanese macaques represent excellent models for examining issues related to sexual preference in animals because females, in certain populations, routinely engage in both heterosexual and homosexual behavior over the course of their life spans. Multiple lines of evidence indicate that female homosexual behavior in Japanese macaques is a sexual behavior, not a sociosexual one. Additional evidence indicates that female Japanese macaques do not engage in homosexual behavior simply because acceptable male mates are unavailable or unmotivated to copulate. Patterns of sexual partner choice by female Japanese macaques that are the focus of intersexual competition indicate that females of this species choose same-sex sexual partners even when they are simultaneously presented with a motivated, opposite-sex alternative. Thus, in some populations of Japanese macaques, females prefer certain same-sex sexual partners relative to certain male mates, and vice versa. Taken together, this evidence suggests that female Japanese macaques are best characterized as bisexual in orientation, not preferentially homosexual or preferentially heterosexual.
动物是否会表现出对同性性伴侣的偏好是一个存在争议的话题。日本猕猴是研究动物性偏好相关问题的优秀模型，因为在某些群体中，雌性猕猴在其生命周期中经常会进行异性性行为和同性性行为。多条证据表明，日本猕猴的雌性同性恋行为是一种性行为，而非社会性行为。更多证据表明，雌性日本猕猴并非仅仅因为没有合适的雄性配偶或雄性不愿意交配才进行同性恋行为。作为两性间竞争焦点的雌性日本猕猴的性伴侣选择模式表明，即使同时有一个有交配意愿的异性可供选择，该物种的雌性仍会选择同性性伴侣。因此，在一些日本猕猴群体中，相对于某些雄性配偶，雌性更喜欢某些同性性伴侣，反之亦然。综合来看，这些证据表明，雌性日本猕猴的性取向最好被描述为双性恋，而非偏好同性恋或偏好异性恋。
