Here are 10 animals that have some of the highest levels of testosterone and the impact it has on their behavior and characteristics.

Human beings have been at the center of ecological change on Earth for thousands of years. But as history shows, no species ...

Humans are often described as “super-predators,” but wildlife may not respond to us as uniformly as once thought. People have ...

Advances in organ and computer models are raising the prospect that some animal experiments could be eliminated. But there ...

What happens when a wild animal stops seeing people as something to avoid? Backyard wildlife rescue often begins with ...

Actress Piper Curda, who voices the film's central character Mabel, and comedian Bobby Moynihan, who plays the beaver King ...

From an animal that’s not actually an animal, to the world’s only venomous primate, there are some unusual deadly animals in ...

Animal testing, long used in science, is considered outdated, cruel and unnecessary. Every year, millions of animals are subjected to painful experiments in laboratories, often resulting in permanent ...

A rare Japanese ant is the only species known to lack female workers and males; all of its young develop into parasitic queens that try to take over other colonies.

The Red Desert Humane Society (RDHS) is expanding its life-saving outreach to high-risk shelters in the southern United ...

Since at least 2016, diplomats, spies and military officers have suffered from unexplained brain injuries likely caused by a ...

Those keeping up with DC Comics news know the publisher recently unveiled a bold new design for Poison Ivy. Now, that design has received a major update that rewrites more than 60 years of tradition ...