See what scientists believe about humans' artificial selection pressures on the dog genome. Aa Aa Aa Any dog lover knows that Labrador retrievers are friendly, Dalmatians are hyper, and Australian ...

The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. Not only their behavior changed; domestic dogs are ...

I ran across a dim photograph of him the other day, going through some old things. He's been dead twenty-five years. His name was Rex (my two brothers and I named him when we were in our early ...