New research on fern vascular systems reveals how developmental constraints don't just limit evolution—they generate new ...

The two subspecies split about 20,000 years ago. But since then, they may have interbred more often than Smithsonian ...

"This suggests that dog genomes can 'tolerate' wolf DNA up to an unknown level and still remain the dogs we know and love," ...

Few horses catch the eye like the Appaloosa–its unique markings make it unmistakable. But the spotted star has much more to ...

Dogs were the first of any species that people domesticated, and they have been a constant part of human life for millennia.

New research suggests that most modern dogs carry a small but detectable dose of wolf DNA acquired after domestication.

New research on 11,000-year-old dog skulls is forcing scientists to redraw the timeline of how wolves became our closest animal partners. Instead of a slow, recent march from generic village mutt to ...

A large genomic study of more than 2,700 canids reveals that most modern dogs retain low but measurable levels of wolf ...