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...
Beluga Whale: Characteristics, Habitat, Diet & Echolocation
The beluga whale (Delphinapterus leucas) is one of the most fascinating marine mammals, easily recognized by its iconic white color and unique adaptations. In this article, we’ll explore everything about the beluga whale—including its physical features, where it lives, how it uses echolocation, wh...