The study centered around male and female adult domestic shorthairs that had each been neutered or spayed Nicholas Rice is a Senior News Editor, Weekends for PEOPLE Magazine. He began working with the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Ears flattened ...

Canines are known to surprise their humans with their shenanigans. However, the most surprising and hilarious instance is when they end up becoming the king or queen of expressions. A recent viral ...

Cats can use hundreds of facial expressions to communicate, a new study reveals. Over the course of a year, researchers recorded a total of 276 distinct facial expressions used among a colony of 50 ...

Photo-Illustration by Chloe Dowling for TIME (Source Images: Klaus Vedfelt—Getty Images, Tim Robberts—Getty Images, Kelvin Murray—Getty Images, Robert Recker—Getty Images, Howard Kingsnorth—Getty ...

Keira Knightley and Kristen Stewart are its best ambassadors. Instead of curving upwards, their mouths curve downwards, ...

There’s a lot we don’t know about gorillas. This is due to the lack of legal dead gorillas to dissect. And that means many details of our shared family tree remain unclear. For instance, we used to ...

(CNN) — Ears flattened, constricted pupils, a lick of the lips. If you’ve ever wondered if your feline friends’ furry faces were saying something whenever they got together, chances are they were. In ...