Question

peculiarities of dolphins​

Answer 1

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They include dolphins, porpoises, pilot whales, bottlenose whales and killer whales. The 37 species of dolphins (32 sea-going species, 3 river species and killer whales).

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Answer 2

Answer:

Explanation:

With a perpetual smile on their faces, dolphins, as members of the carnivorous cetacean family that also includes whales and porpoises, use echolocation – a type of sonar – to see while they swim beneath the waves. In December 2015, biologists and researchers in the US and UK captured an image of a submerged researcher using only the echolocation beam from a dolphin. The image clearly details the shape of the man and even depicts the fingers on his hand.