Dogs began diversifying thousands of years earlier than previously believed, with clear differences in size and shape appearing over 11,000 years ago. A massive global analysis of ancient skulls shows ...

You don't have to walk by a dog park to know that domestic dogs come in all shapes and sizes. From two-pound Chihuahuas to 150-pound Newfoundlands, chunky Labradors to slender Vizlas, our canine ...

They're known as man's best friends, fur babies, pooches. But the most widely used word for these beloved animals — "dog" — is also a great linguistic mystery. "The most everyday, commonplace words ...

A millennium-long story about Greenland is written in the genes of the island’s sled dogs. A new genomic analysis, published July 10 in Science, suggests that humans (and their sled dogs) arrived in ...

A new study looks into the deep past of dogs. More than 3,000 years ago, in what is now Kazakhstan, six dogs were laid carefully in the ground. Were they beloved pets? Sacrifices, since they seem to ...