Elephant Seals Take Power Naps During Deep Ocean Dives - The New York Times

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Elephant seals sleep for just two hours a day, deep dive research reveals, Animals

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Scientists crack the mystery of elephant seals' extreme sleep habits

Elephant seals sleep for just two hours a day, deep dive research reveals, Animals

Elephant Seals Take Power Naps During Deep Ocean Dives - The New York Times

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Fear Shapes Feeding And Resting Strategies For Migrating Elephant Seals - Natural Reserve System

Scientists are using seals to eavesdrop on whales in the deep ocean - Vox

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