Every dog owner knows how hard it can be to say no to "puppy-dog eyes," but a new study shines light on how canine facial expressions evolved and why humans are able to understand them so well.

A new study suggests that coyotes, like the ones seen here, have the same face muscle as dogs that's used to make pleading "puppy eyes." jefferykarafa via iNaturalist under CC BY-NC 4.0 The adorable ...

Many people notice expression lines long before they think about cosmetic treatments. A faint crease between the eyebrows. Fine lines across the forehead that seem deeper in the morning light. These ...

Dogs have evolved face muscles that move much quicker than those of their wolf relatives – which means their faces move in a way reminiscent of human ones. These faster facial muscles allow for better ...

Great apes copy facial expressions of other apes with exact detail, a behavior that may reveal how human communication first ...

Discover 25 weird facts about how personality shapes your face. From chronic emotions to lifestyle, learn how your inner ...

We know our faces may give away our fibs -- whether it's shifty eyes, a sweaty upper lip, a slight smirk, or Pinocchio's fictitious lengthening nose. Subscribe to read this story ad-free Get unlimited ...

New work demonstrates how neural circuits in the brain and muscles of the face work together to respond physically to social cues When a baby smiles at you, it’s almost impossible not to smile back.

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 ...

Horses and humans use similar facial expressions to communicate, according to new research. Horses share some surprisingly similar facial expressions to humans and chimps, according to new University ...

Researchers have pinpointed the area of the brain responsible for recognizing human facial expressions. It's on the right side of the brain behind the ear, in a region called the posterior superior ...