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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Those tiny, fluffy dogs walking down the street may look cute but beware — they probably have some wolf in them. That is the ...

Most modern dog breeds have small amounts of wolf ancestry from long after dogs were domesticated, according to a new study. The wolf DNA isn't left over from when dogs and wolves diverged; instead, ...

Those tiny, fluffy dogs walking down the street may look cute but beware -- they probably have some wolf in them. That is the discovery announced on Monday by US scientists, who were surprised to find ...

The gray wolf, also called the timber wolf, is the largest member of the canine family with fur ranging from gray to brown, black or white. Smithsonian's National Zoo and Conservation Biology ...

Brian Hare began studying dog intelligence as an undergraduate at Emory University in the 1990s, after realizing that Oreo, his Labrador retriever, had a remarkable ability. Unlike other animals, even ...

An important difference between dogs and wolves in how they relate to humans has been demonstrated to be the result of genetics rather than life experience. Jason Goldman, in "The Thoughtful Animal," ...