The animals that live beside us have secrets to tell about the causes and cures for cancer.

Advances in veterinary care present new hope for ailing pets, and tough choices for pet owners.

For thousands of years dogs have wandered the world with humans. Researchers have begun to unravel how that happened.

For thousands of years dogs have wandered the world with humans. Researchers have begun to unravel how that happened.

One day, nanotechnology may put bomb-sniffing dogs out of work.