A Whale’s Sleep
The world's largest mammal is magnificent, beautiful, and interesting. The more you learn about them, the more fascinating they are. Whales are mammals and need air to absorb oxygen. They may live underwater but come up to the surface to breathe. This may have you wonder how and where whales sleep. Imagine diving into the ocean and coming across a pod of sperm whales floating upright and immobile in the open water. What one wouldn't give to witness such a surreal sight. If you do come across such a sight,