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 ...

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, ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: iStock A video showing an elephant waking up what appears to be a sleeping hippo by blasting it with water from its ...

Maybe you didn't get enough sleep last night, but chances are you're still doing better than the typical northern elephant seal. Scientists have discovered the massive creatures — so named because the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Northern elephant ...