Do Whales Sleep? How Whales Rest and Breathe
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...
Sperm Whale vs Giant Squid: A Deep-Sea Predator and Its Legendary Prey
Few marine rivalries are as famous as Sperm Whale vs Giant Squid. For more than a century, this matchup has captured scientific and public imagination because it happens in the deep ocean, far below ordinary human view. A sperm whale (Physeter macrocephalus) is the largest toothed whale on Earth and...
