Yes, whales sleep, but they do not sleep exactly like humans. Whales are air-breathing mammals, so they must continue reaching the surface to breathe while resting. Research on dolphins and other cetaceans has revealed an unusual pattern called unihemispheric slow-wave sleep, in which one side of th...
Dolphins are among the most intelligent and social marine mammals. One of the best-known species is the bottlenose dolphin (Tursiops truncatus), often called the “bottlenose” for its long, narrow snout. It is widely distributed, adaptable, and frequently studied, which is why it appears so often i...