Learn more about the evolution of domesticated dogs from wolf to pug.

Add Yahoo as a preferred source to see more of our stories on Google. Chihuahuas have about 0.2 percent wolf ancestry, according to a new study. While that chihuahua might seem about as similar to a ...

In the 21st century, it is difficult for many to imagine their beloved pets as wild predators, roaming free and potentially posing a threat to communities. While it was originally thought that it was ...

All modern-day pooches, from beefy Newfoundlands to scrawny Salukis, are descended from an ancient population of domesticated gray wolves. Despite the 20,000 or so years that have passed since, a new ...

The staggering array of modern dog breeds is typically traced to the Victorian era. But half of all canine variation was in place roughly 10,000 years ago, a new study suggests. By Emily Anthes As a ...

What’s furry, cute, and may have ancestral ties to ancient wolves? Possibly, your dog. Researchers at the New York-based American Museum of Natural History and the Smithsonian’s National Museum of ...

Modern dogs come in all shapes and sizes. A new study finds they started evolving much of that physical diversity thousands of years ago. (Stephanie Keith | Getty Images) You don't have to walk by a ...

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 ...