Features

Cats sometimes catch and leave a "gift" for their humans. But why do cats give us dead mice, birds or other prey?

A decorated duck egg discovered in a trash pit is the world's oldest "pysanka."

Scientists have identified some reasons why yawns spread from person to person.

References Smart rings may have certain advantages over wrist-worn devices, but we recommend you do not throw out your smartwatch just yet.

The plains viscacha looks a lot like a chinchilla, but it's known for building vast tunnels underground and for producing more than 300 eggs at one time.

Cooking is an essential part of human culture, but people haven't always written down recipes the way we do now.

April 19, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

Iran's folded rocks are a colorful formation that is part of the Greater Caucasus mountains, which formed when the Eurasian tectonic plate collided with the Arabian plate millions of years ago.

A 35-year-old man who couldn't pass urine learned that the cause of his obstruction was a giant worm living in his kidney.

Earth from space This 2024 astronaut photo shows the striking colors of Iraq's Razazah Lake, surrounded by a host of strangely circular fields.