Elephant seals sleep about 10 hours a day on the beach, like these 2-month-old northern elephant seals resting at California's Año Nuevo State Park.

Elephant seals sleep about 10 hours a day on the beach, but during months-long foraging trips at sea they average just 2 hours of sleep per day. These 2-month-old northern elephant seals are sleeping ...

When Northern elephant seals haul out on land to breed and molt, they sleep for over 10 hours a day. During that time, the seals aren’t eating, which may explain their need for extra sleep.

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.

Elephant Herd Circles Around Napping Calves in Heartwarming Display of Protection first appeared on PetHelpful on Jul 29, ...

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 ...

“These elephant seals are sleeping for very short periods of time,” she said. “And that only adds up to about two hours a day for these long foraging trips that last up to 295 days at sea.” ...

Sleep is a precious commodity for people and across the animal kingdom, indispensable even as its biological purpose remains somewhat mysterious. We spend about a third of our lives asleep. But ...

The 10-minute naps during these 30-minute dives help elephant seals get about two hours of sleep per day during foraging trips, as opposed to the 10 hours they catch while snoozing on the beach ...

By Ashley Strickland, 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 ...