A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in ...

The baby boom is a direct result of breeding recommendations from the Association of Zoos and Aquariums (AZA).

Why do humans have larger penises than other primates? New research tests attraction, rivalry, and sexual selection for ...

Nate Heygi: This is Karyn Anderson. She’s a primate behavioral ecologist at the University of Toronto. She studies same-sex relationships in the animal kingdom. And she says, first off, there are ...

Movies often show pets as our most loyal friends, members of the family who make us feel safe and loved. However, in the ...

The British Ecological Society has announced the winner of their annual Capturing Ecology photography competition ...

Captive wild animal encounters are hugely popular, thanks partly to social media. But our investigation shows many creatures ...

Between 1998 and 2009, John Mitani witnessed 18 murders firsthand, and found circumstantial evidence for three more. But no police were ever called, for these killers were all chimpanzees, from the ...

Tonia Haddix, a Missouri woman featured on HBO Max's "Chimp Crazy" for her controversial ownership and care of chimpanzees, was sentenced to nearly four years in federal prison last year. Now, her ...

Many organisms leverage showy colors for attracting mates. Because color is a property of light (determined by its wavelength ...

A single ancient jawbone is rewriting what scientists thought they knew about humanity’s forgotten relatives.