Making new friends can feel awkward, uncertain, and—at times—a little risky. As it turns out, humans are not the only ones who experience this social tightrope. A new study published in Biology ...

Scientists have documented same-sex behavior in many animals. Learn what it means, how it varies, and why human labels can mislead.

Three decades ago, the Animal Welfare Act was amended to require researchers to provide environments that promoted the psychological, as well as the physical, wellbeing of nonhuman primates maintained ...

Jon Garthoff does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...