nytvideo: Hummingbirds change the position and motion of each wing independently as those wings beat 40 times a second. And they do it in the space of one wingbeat http://nyti.ms/1GUOJIm
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nytvideo: Hummingbirds change the position and motion of each wing independently as those wings beat 40 times a second. And they do it in the space of one wingbeat http://nyti.ms/1GUOJIm
