Whale information must not exceed 60 words. If it exceeds 1 and above, don't send it. Soy sauce maker, please don't answer the question.

Whale is the common name of cetaceans in marine mammals, including dolphin family. But in everyday language, people distinguish whales from dolphins. Dolphinidae belongs to the suborder Toothed Whales, including sperm whales and beluga whales.

Like all mammals, whales breathe with their lungs and are warm-blooded animals. Their young are breast-fed and have a little hair.

Whales are spindle-shaped Its forelimbs form fins, its hind limbs completely degenerate, its tail becomes a caudal fin, and its nostrils are at the upper part of its head. Of particular note is the blue whale. It is the largest living animal in the world, with a body length of 30 meters and a weight of 180 tons. Whales generally live for 40-90 years, depending on the species.