Tuesday 7 November 2017

Laid-back whales feed by treading water

An adult Bryde's whale and its calf, doing some tread-water feeding

Ordinarily, baleen whales feed by opening their mouths and lunging forward into the water. They then strain the captured water out through sieve-like baleen plates in their mouths, leaving prey such as krill and small fish inside to be swallowed. Recently, however, scientists have documented another more passive form of feeding in the whales, which is known as "tread-water feeding."

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Category: Biology

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from New Atlas http://ift.tt/2hQiSBt

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