Ancient dog skulls and DNA reveal a surprising diversity in shape and size over 10,000 years ago, long before modern breeds.

Advances in sequencing ancient DNA have revealed that over millenia, people have moved into new regions in successive waves, ...

How dogs see the world is based on the structure of their eyes. Dogs are dichromats, meaning they only have two color-processing cones, while humans have three. Dogs can see colors, including yellows ...

While the research suggests a large amount of diversity existed as early as the Stone Age, many of the dogs we keep as pets ...

Greenlandic sled dogs, also known as Qimmit, play while resting. Markus Trienke via Wikimedia Commons under CC-BY-SA-2.0 Man’s best friend has been our faithful companion for thousands of years.

For thousands of years, humans have selectively bred dogs to fulfill specific roles, ranging from guarding and hunting to herding and companionship. This deliberate shaping of traits has resulted in ...

The staggering array of modern dog breeds is typically traced to the Victorian era. But half of all canine variation was in ...

What makes dogs so special is their deeply social nature—not just with humans, but with each other. Anyone who’s lived with more than one dog has likely seen the strong, lasting bonds they form. They ...

A large study in pet dogs has uncovered potential new biomarkers of aging that could one day help both dogs and humans live longer, healthier lives. Scientists have long searched for biological ...