How would you be able to sleep if you were surrounded by predators who might eat you as soon as you nodded off? Well, a new study shows that elephant seals manage it by only sleeping two hours a day, ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Northern elephant seals are challenging the world record for the ...

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 ...

The surprisingly short shut-eye may be a way for the elephant seal to avoid predators—an intriguing find from the first-ever sleep study on marine mammals in the wild. A baby northern elephant seal ...