That isn’t usually supposed to happen.

Add Yahoo as a preferred source to see more of our stories on Google. Modern wolves and dogs both descend from an ancient wolf population that lived alongside woolly mammoths and cave bears. Iza Lyson ...

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 U.S. scientists, who were surprised to ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. From their wolf ancestors to today’s sweet, loyal ...

Add Yahoo as a preferred source to see more of our stories on Google. Wolves and dogs don’t normally breed in the wild, largely because wolves are so territorial. But an exception has been found.

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 U.S. scientists, who were surprised to ...

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 ...