Scientists find same-sex behavior in many species

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Not all species act sexually in the same way

Same-sex behavior is a nearly universal phenomenon in the animal kingdom, common across species, from worms to frogs to birds, concludes a new review of existing research. 

“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 Nathan Bailey, the first author of the review paper and a postdoctoral researcher in the Department of Biology at University of California,  Riverside. 

There is a caveat, however.