A dog will wag his tail to show interest or happiness, but a cat’s twitching tail can mean “I see you and I’m concerned.” ...

This will crack you up!

This dude loves to play!

Research on joy—those bursts of “woo-hoo moments”—is an exciting area of study across species. But the feeling of joy is tough to measure.

Jamie the tabby cat's late‑night piano playing has left the internet amused and amazed, but the owner told Newsweek it wears off.

The German Shepherd puppy raises a paw carefully. The kitten answers like it knows the rules.

"My money is on the cat," one viewer said. "Need this with The Good, the Bad and the Ugly soundtrack," another added.

These sisters don't speak the same language or even share the same species, but they are still each other's BFFs. Still, that ...

Meet Scrabble! Scrabble is a young cat who was found as a stray, and boy, is he glad to be indoors! He loves to be petted and he especially loves to be fed. Scrabble was a lonely fellow who was picked ...

Photos and records confirm cats were everywhere in WWI trenches, but historians still question the viral claim of 500,000 ...

Do pets really reduce stress? Doctors explain how dogs and cats may lower cortisol, boost oxytocin and support routine, while ...

I can already picture my cats fighting over it.