Gray wolves lives in packs of about 8 wolves, though some packs can be as large as 20 or more wolves.

The leader of the wolf pack is called the Alpha Wolf. There is usually an alpha female and alpha male in each pack.

Gray wolves can be gray, white, black, tan or brown.

Gray wolves weigh as much as 175 pounds and can be 6 1/2 feet long including the tail.

The gray wolf is an endangered species.

Mother wolves usually give birth to
5 - 6 pups.

Mother wolves often dig dens in which she and other members of the pack will raise the pups.

Wolves communicate by howling, body language and scent markings.

The red wolf is a different species from the gray wolf.

The red wolf lives in smaller packs than gray wolves. The red wolf pack is usually made up of the adult pair and their pups.

The red wolf is smaller than the gray wolf.

The red wolf is an endangered species.

Red wolves weigh between 40 - 80 pounds

Arctic wolves are closely related to gray wolves. Thy have adapted to their environment with a white coat, more rounded ears and a shorter muzzle.

Arctic wolves may have a range of 1000 miles due to the scarcity of prey.

Mother wolves usually give birth to 2 -3 pups.

Since the ground is usually frozen, mother wolves try to find a den in a protected area of rocks.

In the arctic the temperatures can drop to 100 degrees below zero.