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Animals | Wild Animals | Aquatic Mammals

Aquatic mammals such as whales and dolphins live and feed in the ocean. The Blue Whale is the biggest mammal on Earth.

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Do whales and dolphins sleep?

Do whales and dolphins sleep? I know they have to come to the surface of the water periodically to breathe, so wouldn't they die if they dozed off?


What makes beached whales explode?

 What makes beached whales explode?

What makes beached whales explode? Find out what makes beached whales explode at HowStuffWorks. See more »

 Blue Whale

Blue Whales are the largest animals in the world. Learn more facts about the Blue Whale at HowStuffWorks. See more »

 Harp Seal

Harp Seals can weigh up to 320 pounds. Learn more about the harp seal at HowStuffWorks. See more »

 Leopard Seal

The Leopard Seal gets its name from the leopard-like dark spots on its coat. Learn more about Leopard Seals at HowStuffWorks. See more »

 Northern Right Whale

Northern Right Whales have growths called callosities that are as unique as fingerprints. Learn more about this mammal at HowStuffWorks. See more »

 Striped Dolphin

Striped Dolphins belong to the Balaenopteridae family. Learn more about this dolphin at HowStuffWorks. See more »

 Walrus

The Walrus is common aquatic mammal. Learn facts about the Walrus at HowStuffWorks. See more »

 West Indian Manatee

West Indian Manatee is considered to be the largest creature in its class of species. Learn more about the West Indian Manatee. See more »

How do walruses sleep in the water without drowning?

 How do walruses sleep in the water without drowning?

Walruses sleep in the water without drowning with a clever anatomical adaptation. Learn how walruses sleep, mate, nurse and just relax in the water. See more »

Can manatees see underwater?

 Can manatees see underwater?

Manatees see poorly underwater, with the aid of two very small eyeballs. Learn how manatees see underwater and navigate with such poor vision. See more »