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研究:同性关系可能在生物进化中意义重大

kira86 于2009-06-18发布 l 已有人浏览
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Birds do it. Bees probably do it. No one's sure whether educated fleas do it. What they do is have same-sex r

birds do it. bees probably do it. no one's sure whether educated fleas do it. what they do is have same-sex relationships and, in a new review of published research on the subject, biologists have started to consider what it might mean for the evolution of the animals in question.

nathan bailey and marlene zuk, biologists at the university of california, riverside, found that same-sex relationships were a universal phenomenon in the animal kingdom, seen in everything from worms to frogs to birds. "it's clear that same-sex sexual behavior extends far beyond the well-known examples that dominate both the scientific and popular literature: for example bonobos, dolphins, penguins and fruit flies," said bailey.

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