A genetic study shows how human breeding choices influence ear length in dogs and why those traits persist across breeds.

Dogs have a measurable ability to read human emotion, and research consistently shows that interacting with dogs lowers ...

The role for which a dog was bred—say retrieving birds—is reflected in their brain structure, according to a study of 33 breeds.

What do Persian cats, Pekingese dogs and pugs have in common? They all share a dramatically distorted skull, with a flat, round face and a nose pushed up between their eyes. This unnatural morphology ...

Some dogs are born with a powerful instinct to chase, stalk, and pursue. These traits once made them exceptional hunters, ...

Dogs today come in a mind- blowing array of shapes and sizes, from the diminutive pug, Pekingese and Pomeranian to the grand Irish Wolfhound, Great Dane and Saint Bernard. But when did this diversity ...