Wednesday, February 26, 2014

The Genius of Birds - Hummingbird Tongue

In order to fuel its heart and wings that can flap up to 100 times-per-second, a hummingbird must eat several times an hour. This groundbreaking sequence from FLIGHT: THE GENIUS OF BIRDS illustrates the system of mechanisms that enable a hummer to consume several times it body weight in nectar each day.

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