See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Animals mating with the same sex is a common trait, having evolved so ...

Science has treated same-sex sexual behavior as an “evolutionary conundrum” because it (generally) doesn’t help animals to reproduce, thus ensuring that their genes get passed down and their species ...

I've studied various aspects of play behavior in a wide variety of nonhuman animals (animals) for decades, focusing mostly on members of the "dog family" (canids), while some of my students have ...

Play behavior in crocodilians is not uncommon, but it remains virtually undescribed in scientific literature. I present the first overview of play behavior of three types (locomotor play, object play ...

A study by Spanish researchers suggests same-sex sexual behavior among mammals − especially primates − is not only common and adaptive but supports social relationships and reduces conflict. Their ...