Floppy ears, big eyes, tender paws and earnest faces—puppies evoke an instant cuddle response in humans. But they can also change lives. That's the case for Katie McCoy, 33. Born with a genetic eye ...

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, ...

Stacker looks at 25 dogs and what they were bred for. Some breeds are thousands of years old, while others were just recently ...

Dog breeding is a huge, lucrative international enterprise, and there are clear problems in breeders’ efforts to produce dogs who suffer from any number of physical and emotional maladies to satisfy ...