Do Whales Sleep
Another aquarium keeper told us that one of their killer whales seemed to sleep very little. So whales can sleep literally with one eye open. How Do Whales And Dolphins Sleep Without Drowning Scientific American Plus one brain hemisphere awake to remember to breathe. Do whales sleep . While one half of the brain stays awake to make sure the whale breathes and alerts the whale to any danger in its environment the other half of the brain sleeps. Digital Vision Getty Images Whales and dolphins are mammals so in a lot of ways they are just like human beings Among other things they have similar bone structure are warm-blooded and give birth to live young. The whales sleep and their brains also need rest. The whales were found to spend seven percent of their day in these vertical sleeping positions near the surface of the water where they napped from 10 to 15 minutes. They either rest quietly in the water vertically or horizontally or sleep while swimming slowly next to another ...