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How are whales able to breathe air and dive for long periods?

April 26, 2017able air breathe Dive periods Whales

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How are whales able to breathe air and dive for long periods?

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10 Posted

Freddie Bradt, Cologne, Germany Whales, dolphins and porpoises are totally adapted to a life at sea, but as air-breathing mammals, they must surface to breathe. Sperm Whale In diving, the blow-hole is firmly closed, and the heart-rate is slowed down. Whales are tolerant of a high concentration of carbon dioxide in the blood. The result is that they are able to hold their breath for periods which would drown a land animal.