Thousands of years ago, domestic dogs split off from wild wolves -- we can still see common behaviors in both animals, such as stalking, hunting and playfulness. But life in a wolf pack is extremely regimented to maximize the chances for survival. Take the wolf quiz and see if you're the leader of the (knowledge) pack. See more »

Wolves are wild predators and could kill your beloved Fido for a tasty meal. But will these animals come after you, or do they prefer a drama-free neighborhood? See more »

What's a full moon without the howl of a wolf echoing in the background? Are wolves really howling at the moon or just talking among themselves? See more »

Loners might seem intriguing, but they lead dangerous lives -- a least those in the wolf world do. Lone wolves are outsiders, relying only on themselves to survive without a pack. See more »

The leader of the pack doesn't always lead a doomed existence like in the Shangri-Las song. A wolf pack's leader and other members follow defined roles, creating a strong, devoted group. See more »

Plagued by negative images and slanderous tales, wolves could use the help of a good publicist. Will positive news like wolves help strengthen the ecosystem override age-old fears and misconceptions? See more »

Because of their fierce jaws, cunning hunting tactics and nocturnal nature, spotted hyenas aren't exactly known for tee-heeing the day away. So what do those spine-chilling peals of laughter mean? See more »

Dingo, or Warragal, a dog of Australia. It is both wild and domesticated. It is about two feet (60 cm) high at the shoulder and is up to four feet (120 cm) long, including a one-foot (30-cm) tail. See more »

The dog is a carnivorous mammal that was domesticated by humans thousands of years ago. See more »

Fox, a small, flesh-eating animal that belongs to the dog family. The female is called a vixen; the young are cubs, kits, or pups. See more »