Studying ancient sea creatures’ snoozing habits could shed light on the origins of sleep.

The white-handed gibbon comes closest to humans in the study, with a monogamy rate of 63.5%. It’s the only other top-ranked ...

The Burmese cat is a sleek, social breed known for its satin-like coat, muscular build and deeply people-oriented personality ...

These three bird courtship displays are so bold, precise and theatrical that they make human romance look a little ...

How much does it matter where you are born, or whether you are heavy or light, if you are a house sparrow? Researcher Kenneth ...

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered ...

Security video posted to Nextdoor on Monday shows the animals moving through the back of a driveway near Clemson, just ...

Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...

Off the coast of the UK, fishermen and marine biologists are witnessing something not seen in generations. Sightings of the ...

About 3 to 5% of mammals are known to be monogamous, meaning they select one mate for life. Still, many monogamous species ...

Bite force, a measure of the strength of an animal's bite, helps researchers understand a species' role in the ecosystem.

Then, in 2021, a hunter in Cherry Valley shot a coyote that looked an awful lot like a wolf. It was much bigger than the ...