A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Ohio’s white-tailed deer might seem like an obvious state symbol, but that familiarity is exactly why it works. Few animals ...

Learn all about the unmistakable pilot whale, from their diet and size to life in the pod and why, sadly, they're prone to ...

Every year, scientists add thousands of new names to the great book of life. This momentum was initiated by the work of ...

Biologists are confronting a problem they thought they had mostly solved: what, exactly, counts as life. A wave of ...

Despite being mammals, these remarkably cancer-resistant animals share a lot in common with cold-blooded species.

New species are being discovered faster than ever before - at a rate of more than 16,000 every year, suggests a new study.

Nevada County Sheriff Shannan Moon and animal control supervisor Stefanie Geckler tell PEOPLE exclusively the details of the harrowing rescue Nevada County Sheriff's Office Authorities rescued over.

Giant tortoises are some of the long-lived species on the planet. Here’s what biologists now understand about one of nature’s most impressive longevity experiments. Giant tortoises are redefining what ...

Researchers have found a way to control protein levels inside different tissues of a whole, living animal for the first time. The method lets scientists dial protein levels up or down with great ...

The evolutionary origin of sperm can be traced back to a single-celled ancestor of all living animals. Almost all animals reproduce by having a single-celled stage of their life cycle, involving two ...

BUCKEYE, AZ — The Maricopa County Sheriff's Office discovered animals in horrific conditions at a home in Buckeye on Wednesday. MCSO says they received reports from a resident about possible animal ...