Science

The best way to measure how old a fish is is by counting the number of rings formed on a chunk of calcium living in its inner ear. This lake trout, named Mary Catherine, had 62 rings.

An alligator in the Florida Everglades was seen doing its part to combat the invasion of Burmese pythons in the region, chomping on the limp body of one of the massive snakes and swimming off with the meaty catch.

Recently, some wild rabbits have been seen in the U.S. with "horn-like" growths spurting from their heads that are caused by a viral infection, according to experts.

The Perseids peak this week—but light pollution could dim the show for Chicagoland. Here's how to get the best view.

“It sucks knowing in order to be myself, I have to have nicotine," said Peter Nguyen.

Astronaut James Lovell, who was commander of the 1970 Apollo 13 mission, has died. Here's what we know.

The rock was nicknamed "Paposo."

A proud Pomeranian fearlessly protected his home – or more likely his food bowl – from a black bear who wandered inside.

A livestream of deep-sea creatures captivated Argentina, highlighting the calming global trend of “slow TV." Here's why millions tuned in.

A new Northwestern study finds some adults over 80 maintain memory and brain health on par with people decades younger, offering insight into how aging and Alzheimer’s could be delayed.

WATCH: A shark and stingray engaged in quite the tussle last month off the shore of Panama Beach in Florida. A woman was able to capture the moment on camera.

The Royal New Zealand Air Force successfully evacuated three U.S. researchers from Antarctica in a rare and risky midwinter mission.

The marks extended up the child's arm.