Animals

It's unknown who or what is killing these sea lions on Canada's Pacific coast.

A striking red-and-white pattern on a newly-described spider's back resembles the grin worn by iconic Batman villain, the Joker.

Golden retrievers typically live between 10 and 12 years.

When an adult male gorilla in a South African zoo developed breathing problems, wildlife specialists diagnosed the ailment with CT scans.

Chilean scientists nicknamed the fossil "The Thing" after a 1982 sci-fi movie based in Antarctica.

The giant squid's esophagus goes through its brain.

It had a boomerang-like head shield and dozens of legs studded with daggers.

This ancient croc's legs were likely as long as a human's.

The ichthyosaur and her unborn babies lived about 246 million years ago.

Humongous T. rexes might not be as old as they seem.

Photographs of a shark bearing strange, circular scars could be evidence of a rare giant squid encounter, researchers say.

Great white sharks are fierce hunters. But as juveniles, their diets involve way more bottom-feeding than hunting large prey.

Rattlesnakes are threatened in British Columbia in Canada, and many populations are declining at alarming rates.

After snake eels are swallowed by bigger fish, they can burst out of their predators' stomachs ... to freedom? Not exactly.

Teeny-tiny sea creatures secrete snotty blobs from cells on their heads to build their oversized mucus dwellings.

A pregnant wild elephant in Kerala, India, died on May 27, possibly due to an explosion in her mouth after she ate a fruit stuffed with firecrackers.

Just like a toddler, this dinosaur was a picky eater.

Fossil brachiopods from China were crusted with parasites, which may have hijacked their hosts' feeding structures in order to steal their dinner.

The octopus was found miles beneath the ocean surface.