What is a dolphin? Detailed answer

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What is a dolphin? Detailed answer

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What is a dolphin?

Dolphins are such interesting creatures that it's hard for people to believe that a dolphin is just one of the cetaceans. There is a detachment of aquatic mammals, which scientists call cetaceans. This order includes whales, dolphins and porpoises. Dolphins are small whales and belong to the group of toothed whales. Porpoises are a type of dolphin that do not have a pointed nose, but instead have a triangular dorsal fin and spade-shaped teeth. Toothed whales feed on cuttlefish, cephalopods, crabs, and various fish that they catch.

The killer whale, the only cetacean that feeds on other warm-blooded animals, is a large dolphin. In length, it reaches 9 meters and is easily controlled with seals. The rest of the dolphins are rarely more than three meters long and have very small heads.

The common dolphin, found in all temperate and tropical seas, has a crescent-shaped tail. Its black back contrasts sharply with its white belly. Dolphins live in large flocks and seem to enjoy chasing ships.

Scientists are trying to understand how dolphins avoid danger underwater and what signals they send to each other. It is believed that dolphins and porpoises are able to exchange sounds that make much more sense than any other sea creatures.

Author: Likum A.

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