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 ...

Living alongside humans changed both how dogs behave and how they look. Research shows that domestic dogs developed a small ...

The oldest ancient dog genomes on record all come from a population that lived alongside Ice Age hunter-gatherers across ...

Two new papers have shown that dogs were fully distinct from wolves—and companions with people—more than 14,000 years ago.

Scientists can’t paint a picture of exactly what the first dogs looked like, but think they resembled smaller wolves.

Scientists think dogs descended from an ancient population of gray wolves somewhere in Europe or Asia. Tens of thousands of ...

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 ...

One dog, known from bones found at the Pinarbasi rock shelter site in Turkey used by ancient human hunter-gatherers, is about ...

Learn how DNA from 14,200-year-old dogs shows they lived in Europe before farming and traces their ancestry to eastern wolves ...