Since their domestication millennia ago, dogs have been man’s best friend, and aside from friendship, centuries of selective breeding have tailored them for tasks like herding, hunting and guarding — ...

Dogs can have wildly different personalities, which often vary by breed and size. Although individual temperament matters ...

Humans have a long history of reshaping their canine companions, which evolved from ancient wolves. At least 10,000 years ago, Arctic peoples were using selective breeding to create sled dogs, ...