Abstract

Humans aren't the only predators vacuuming fish from the seas. A new study estimates that penguins, auks, and other seabirds feast upon about 70 million tons of fish annually. That's just 10 million tons less than the annual human take, according to the 18 February issue of Biology Letters. Macaroni penguins are among the biggest gluttons, robbing the seas of 11.2 million tons annually.

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