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Aquatic Mammals

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

Narwhals Caught on Video Using Their Tusks to Hunt

It's the first evidence researchers have of the whales using their 'unicorn horns' to capture prey. Watch the footage at HowStuffWorks. See more »

Solar Flares Could Scramble Signals, Cause Mysterious Whale Beachings

Why do whales beach? Learn more about a potential link between solar flares and whale beaching in this HowStuffWorks Now article. See more »

Orca Menopause May Be Related to Mother-Daughter Competition

Why do killer whales experience menopause? Learn more about orca and menopause in this HowStuffWorks Now article. See more »

Narwhal Echolocation Abilities Exceed Those of Any Other Animal, Study Finds

What are the echolocation abilities of a narwhal? Learn more about a new study on narwhal echolocation in this HowStuffWorks Now article. See more »

Humpback Whales Save the Day for Seals, Other Species

Humpback whales may have just attained superhero status, thanks to a study documenting how they've saved other animals from killer whales. See more »

Orcas Altered Their Own Evolution

A range of animals, from monkeys to humpback whales to orcas, develop cultures just like people do. That culture can drive evolutionary changes. See more »

SeaWorld Ends Orca Program

SeaWorld just announced that it is gradually ending its orca program. Learn more about the humane economy at HowStuffWorks Now. See more »

What makes beached whales explode?

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

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

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