A HUMMINGBIRD’S TONGUE

Описание: To fuel its heart and wings a hummingbird eats 4-8 times an hour. The mechanisms that enable a hummer to consume several times it body weight in nectar each day are revealed in this unforgettable study of biological engineering and intelligent design.

This video is an excerpt from the feature-length documentary FLIGHT: THE GENIUS OF BIRDS. For more information contact www.go2rpi.com