Elephant Seals Take Power Naps During Deep Ocean Dives - The New

Elephant Seals Wandering through Time and Place

Northern elephant seals can get less sleep than almost any other animal : NPR

Seals skip sleep at sea to escape shark attacks

Elephant Seals Take Extreme Power Naps in the Open Ocean, Smart News

Baby Elephant Seals Learn Survival Skills, Like Holding Their Breath, All on Their Own

Sleeping elephant seals fall through ocean's depths, and some even nap on the sea floor - ABC News

Sleepy Seals Bug Woman – Adventures in London

For deep-diving elephant seals, it takes lots of work to stay fat

Elephant seals sleep for just two hours a day, deep dive research reveals, Animals

Elephant seals take naps while diving

Female elephant seals travel to deep waters to feed. How do they know when to return to the rookery to give birth? Scientists track the…

Elephant Seals - Point Reyes National Seashore (U.S. National Park Service)