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 ...

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 ...

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 ...

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, ...

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

SIERRA COUNTY – An investigation is underway in the Northern California high country after a dog apparently mistaken for a wolf was shot and killed. The Sierra County Sheriff's Office posted earlier ...