Two lion brothers rubbing heads in sign of affection and bonding© RichartPhotos/Shutterstock.com Scientists have recorded same-sex behavior across many animal groups ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Homosexual behavior is much more common across the animal kingdom than we first thought, new research has found.

A tiger walks the same worn groove along the edge of its exhibit like a broken record. A parrot methodically plucks out its own feathers until bare skin shows through. To a casual visitor, these can ...

Many people, including researchers and people who are simply interested in animal behavior, have written off queer sexual behavior in nonhuman animals for any number of reasons, including that it is ...