T he adorable “puppy dog eyes” expression has long been associated with our canine companions. Researchers have thought the ...

Researchers have found that dogs have evolved muscles around their eyes, which allow them to make expressions that particularly appeal to humans. A small facial muscle allows dog eyes to mimic an ...

Coyotes, like domestic dogs, possess the ability to create the "puppy dog eyes" expression, a facial feature long thought to have evolved exclusively in dogs due to domestication, according to a ...