A traveler checked into one of the most expensive hotel rooms on Earth, an underwater suite in the Maldives costing $18,000 ...

Elephant seals drift downwards into the ocean in a "sleep spiral" to catch up on sleep while on months-long foraging trips but are programmed not to drown, according to a new study. The seals fall ...

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

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 team of scientists recorded the brain activity of diving elephant seals in the wild and mapped out the eccentric treks the animals take when they sleep mid-dive. Exactly when and where elephant ...

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 ...

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 ...