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

It seems the diversity of domestic dogs first began developing thousands of years before humans started intensely shaping modern breeds in the 19th century—challenging what we thought about canine ...

Most pet dogs carry a little wolf inside them; tiny snippets of wolf DNA that slipped into dog genomes after domestication. A new study, published in Proceedings of the National Academy of Sciences, ...

The crude view of evolution is often stark: a struggle for life in the wilderness, dominated by the strong, the cunning, the fierce, or the exquisitely camouflaged. And yet, who thrives today? Dogs.

Origins of the dog: domestication and early history / JulieClutton-Brock -- Evolution of working dogs / Raymond Coppinger and Richard Schneider -- Genetic aspects of dog behaviour with particular ...

Modern dog breeds come in a mind-boggling array of shapes and sizes—from Chihuahua to Great Dane, corgi to greyhound, pug to German shepherd. In fact, the domestic dog, Canis familiaris, shows more ...