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 ...

Finally, Fido has a proper family tree. Genetic researchers have assembled the most definitive evolutionary tree of dogs using gene sequences from 161 modern breeds. The map of dog breeds and how they ...

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 ...

Dogs sit beside us every day, and that closeness feels familiar. Over time, that familiarity can hide quiet changes happening under the surface. One of those changes appears inside the skull, where ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. It seems the diversity of domestic dogs first began developing ...