Science News Roundup: For baleen whales, meals are tons of fun - and lots of tons

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For baleen whales, meals are tons of fun - and lots of tons

The first study to methodically calculate how much food blue whales and some of their close relatives eat has yielded a simple answer: a whole lot. The blue whale, the largest animal in Earth's history, eats about 16 tons of krill daily in the North Pacific, gobbling up these tiny shrimp-like crustaceans with a filter-feeding system in the mouth using baleen plates made of keratin, the substance found in people's fingernails, scientists said on Wednesday.

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