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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Elephant seal sleeping in Antarctica.Sebnem Coskun/Anadolu Agency via Getty Images Elephant seals drift downwards in a "sleep ...

WASHINGTON (Reuters) - 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 ...

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 can ...

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 ...

A biologist at Scripps Institution of Oceanography has found that elephant seals take multiple 10-minute naps during their nearly 10-month foraging trips out to sea. Like us, elephant seals need to ...