The role for which a dog was bred—say retrieving birds—is reflected in their brain structure, according to a study of 33 breeds.

The domestication of dogs began around 15,000 years ago, when wolves first started to be domesticated by humans. It is believed that early humans tamed wolves and eventually bred them to create the ...

Dogs are the oldest domesticated animals. They are also the only animals that have been known to accompany humans in different environments and eras no matter the geographical location of the ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. For better or worse, there is pretty much a dog breed for everyone ...

Sometimes it is difficult to believe that all dogs are related. How can the tiny chihuahua be from the same species as the massive Great Dane? A male beagle is usually between 14 and 16 inches tall; a ...