Why do whales and dolphins often come up the water surface.they even release fountain of water sometimes .why they do so?
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They do this because of Respiration and for oxygen.
they come out and gain oxygen and also they have great ability to live in water with more time without oxygen means by not getting oxygen. .
they come out and gain oxygen and also they have great ability to live in water with more time without oxygen means by not getting oxygen. .
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