For the first time, scientists have recorded brain activity in a free-ranging, wild marine mammal, revealing the sleep habits of elephant seals during the months they spend at sea. The new findings, ...

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Elephant seals drift downwards in a "sleep spiral" when deep diving in the ocean, a new study found. Sleeping while deep diving allows the seals to avoid predators, scientists believe. The scientists ...

The African bush elephant holds the world record for the mammal that clocks the fewest hours of sleep per night, dozing off in bursts that together add up to just two hours. But now, scientists have ...

CNN — Northern elephant seals might be masters of multitasking in the animal kingdom because they've learned how to sleep and dive at the same time — all while avoiding predators. The elephant seals ...

During the many months they spend at sea gorging on fish and squid, the massive mammals sleep only about two hours a day. By Annie Roth It long seemed as though African elephants were the champions of ...

An image of a young elephant performing for an audience while submerged in a tank in Thailand has reignited conversations on the issue of animal welfare. Award-winning photo: Taken at Khao Kheow Open ...

The coldest oceans are home to some of the most valuable information about the future of the planet, but many parts of those oceans have been largely inaccessible for thorough study. But now, the ...

The relationship between oceanographic conditions and predator population dynamics is a complex but critical area of study in understanding marine ecosystems. In particular, the northern elephant seal ...