For thousands of years, humans have selectively bred dogs to fulfill specific roles, ranging from guarding and hunting to herding and companionship. This deliberate shaping of traits has resulted in ...

From Pekingese to St. Bernard and greyhound, dogs come in such startling variety it's easy to forget they belong to the same species. The profusion of breeds today -- at least 150 -- reflects intense, ...

There is a good chance that many of you watching right now have a dog somewhere nearby. But what do you actually know about where dogs come from? You're probably aware they evolved from wolves, but ...

Most pet dogs carry a little wolf inside them; tiny snippets of wolf DNA that slipped into dog genomes after domestication. A ...

While dogs and cats are genetically unrelated, breeding for certain features is making some dog and cat breeds look more and ...

For a long time, it was believed that the first domestic dogs all resembled today's wolves. However, studies suggest this is not necessarily the case. Photo: Getty Images / Roman Bjuty How much ...

Pet owners have long joked that their dogs and cats are starting to look alike, but new research suggests that convergence is ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Most pet owners probably know what it’s like to cave to those ...

For decades, scientists have studied animals living in or near the Chernobyl Nuclear Power Plant to see how increased levels of radiation affect their health, growth, and evolution. A study analyzed ...