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Mammals: Gray Wolves

Related Article: Learn more about mammals.

The gray wolf is a predator whose survival depends on a rigorous social order. An alpha male leads the pack. Gray wolves are an endangered species.

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Survival Guide: Serengeti: Serengeti Scavengers (2:21)

The spotted hyena is the meanest beast of the Serengeti. On Animal Planet's "Survival Guide: Serengeti," experience their scavenging and bullying ways.

Survival Guide: Serengeti: The Hyena's Enemies (3:00)

On Animal Planet's "Survival Guide: Serengeti," the hyenas are getting bullied by lions and wild dogs. Although the hyena has jaws of steel, a lion will sometimes kill a hyena just for fun.

Polar Bear Alcatraz: An Uncertain Future (2:14)

These polar bears face an uncertain future on Wrangel Island. Can they survive global warming?

Whale Encounter (3:13)

From the archives of Discovery: This brave researcher has a close-up encounter with several whales. Learn more about whale encounters.

Wayward Whales Head for Home (0:58)

Watch this video about two whales that apparently found their way home on HowStuffWorks. The mother and calf humpback whales, named Delta and Dawn, appear to have headed back to the Pacific Ocean. Wildlife experts, concerned about the health of the... More »

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Corwin's Quest: Camel Survival (2:10)

On Animal Planet's "Corwin's Quest," Jeff Corwin demonstrates how camels are custom made to survive the harsh conditions of the desert.

Ripple Effect: Southern Sea Otter (1:23)

Southern sea otters are marine mammals so they spend 90% of their time in the water. In order to cope with the cold water, they have the densest fur on the planet. Learn more in this clip from Animal Planet's "Ripple Effect."

Survival Guide: Serengeti: Spotted Hyena Females (2:55)

On Animal Planet's "Survival Guide: Serengeti," meet the spotted hyena. The females are in charge and even from birth the strongest newborn female kills the weaker sister.

What's to Love: Hyena's Lifestyle (1:23)

On Animal Planet's "What's to Love?" hyenas have powerful jaws that crush their food, and they can digest skin and bones. Hyenas are social creatures and let out a "whoop" when they are nervous of being attacked.

Get Out There: Elks at Horseshoe Park (2:41)

On Animal Planet's "Get Out There," the Zorbo family checks out some elk at Horseshoe Park during their mating season.

Get Out There: Ram's Hoofs and Horns (1:35)

On Animal Planet's "Get Out There," join the Zorbo family on their Rocky Mountain adventure as they examine bighorn rams' hoofs and horns. A ram's horn can weigh as much as 40 pounds.

Get Out There: Looking for Bighorn Rams in the Rockies (2:41)

On Animal Planet's "Get Out There," the Zorbo family finds bighorn rams feeding by the Rocky Mountain roadside. While bighorns aren't picky, they enjoy the calcium rich roadside plants.

Get Out There: Coyote Packs in the Rockies (1:18)

On Animal Planet's "Get Out There," the Zorbo family spots a coyote pack in the heart of the Rocky Mountains. Coyotes communicate with each other by distinctive howls.

Get Out There: Moose Sighting in the Rockies (2:13)

On Animal Planet's "Get Out There," learn about moose mating and lifestyles. Moose have four stomachs and can eat up to 60 pounds of greens a day.

Get Out There: Pronghorn Antelope (3:00)

On Animal Planet's "Get Out There," the Wilder family teams up with a wildlife biologist to track down the pronghorn antelope. The pronghorn antelope is one of the fastest land mammals in North America.