Wolf DNA seems to have influenced the size, smelling power and even personality of modern dog breeds, scientists said.

Some massive breeds such as the St. Bernard completely lack wolf DNA, but the tiny Chihuahua retains detectable wolf ancestry ...

How much influence did humans really have on the enormous variety of today’s dog breeds? An analysis of dog skulls from the last 50,000 years brings surprising insights to light: As early as 11,000 ...

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 ...

Poodles of all sorts—Standard Poodles, Toy Poodles, Miniature Poodles—are some of the healthiest, especially for purebred ...

It's always so cool seeing a rare dog, even in video form, and even cooler to see one of these rare dogs next to a puppy of the same breed! It also helps that the pups you are about to meet have been ...