A female elephant seal flips sand onto its back to stay cool, at Año Nuevo State Park, California

This female elephant seal was resting at Año Nuevo State Park, in California. Because elephant seals have so much blubber to stay warm in the cold water, they tend to overheat when they're not in the water. To keep cool, elephant seals will try to find cool spots to lie on and will flip sand onto their backs to create a little shade on their skin. 

We observed these elephant seals during a guide hike conducted by docents with the state park. During the breeding season for the elephant seals, hikers must go with a guide on an organized trip to protect the seals. Our guide had a lot of great stories to tell and photos of himself and the elephant seals when he used to do research on this species. He even had a picture of himself using an elephant seal as his pillow while he took a nap.

The elephant seal species was nearly wiped out by sealers, but their population has come back strong. One interesting aspect of their recovery is that historically they would only breed on islands, not on the mainland. Now they are hauling out on the mainland for breeding. So what prevented them from breeding on the mainland in the past? The California grizzly bear, which is now extinct due to human activity.

Remember, it's not just a picture, it's a story!