A chimpanzee female (Pan troglodytes schweinfurthii) sleeps in a nest built in a tree in Uganda's Kibale National Park. The ...

Just because a female olive baboon has mated with a specific male doesn't mean he will be the father of her offspring.

A rescued mountain lion cub, Crimson, is receiving care at the Oakland Zoo after being abandoned by its mother. While overall ...

From deep growls rolling over savannas to haunting whale songs drifting through the ocean, many species rely on sound to stay ...

Mountain lion sightings have been confirmed in both Merced and Gustine in recent days, raising awareness among residents and prompting questions about ...

This article originally published at Mountain lion P-22, LA's 'dearly departed king,' readies for a grand return.

Ducks with corkscrew penises, fish changing sex – what do we really know about sex and reproduction on Earth? Less than we ...

The state placed six mountain lion species on the threatened list, so road and land developers must evaluate projects to not isolate pumas.

Sitting at a long, elevated table at Bon Secours Wellness Area not long after suffering a season-ending 66-64 loss to TCU, ...

While lions, tigers and their relatives can sometimes interbreed, these rare hybrids reveal as much about the limits of nature as they do about its possibilities.

People and animals often prefer the same mating sounds. New study shows shared biology may shape what we find pleasing to ...