Humans tend to prefer dogs with darker eyes, scientists have found, which could be linked to how they evolved from wolves. Dogs evolved from their closest relatives, gray wolves. Over time, they ...

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 ...

From village dogs to toy poodles to mastiffs, dogs come in an astonishing array of shapes, colors and sizes. Today there are estimated to be about 700 million dogs living with or around humans. To ...

Just about everybody knows that dogs are blessed with a superior sense of smell. As a matter of fact, their sense of smell is so sophisticated that humans, in comparison, are olfactory illiterates.

Dogs could help predict valley fever spread in humans. A new study finds a strong correlation between occurrence of dog and human disease. Valley fever, or coccidioidomycosis, is caused by a fungus ...

If you've ever lost a dog to disease, it may well have been cancer. Some 4 million dogs in the U.S. are diagnosed with it every year, often the same kinds of cancers as humans get. We share many of ...

Many people rely on assistance dogs for support, and the well-being of all participants in these interactions is essential and given careful attention. To be sure that the dogs' and their humans' ...