A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in socially complex species. The findings show diverse sexual behaviors are common — ...

For a few fleeting weeks each winter, the famously elusive cats emerge from solitude, calling across the mountains in search of a mate.

A Bila-shaka male lion and a Paradise lioness busy honeymooning as a second Bila-shaka male lion, brother to the first, walks by.

Advocates want the state to dedicate $15 million a year to bring back specialists focused on resolving conflicts between people and wild animals. Will they get it?

A mountain lion on the city sidewalk makes everyone reset their daily routines with a sudden rush, in particular, people ...

With the rapid melting of Arctic ice, the waters have opened up to more human traffic, which is disturbing the underwater ...

The Southern California mountain lions are up for permanent protection from a state environmental agency. Will this help them ...

“While the human penis functions primarily to transfer sperm, our result suggests its unusual large size evolved as a sexual ...

Taylor was a frequent flyer when it came to crossing I-40, the upper boundary of the endangered species' recovery area.

Nature is full of surprises, but few are as fascinating as hybrid animals, creatures born from crossing two different species. Some hybrids occur naturally where habitats overlap, while others result ...

Discover 36 incredible monkey facts, from record-breaking howls to tail tricks and clever tool use. Fun, fascinating, and perfect for curious minds.

Of all the schemes that humans have devised to keep sea lions from gorging on the salmon of the Columbia River basin, none has worked for long. Local officials and researchers have chased sea lions ...