This is Jack with Jack’s Facts and here is today’s fact. “Pound for pound, the hummingbird has the most powerful muscles of any animal. The muscles powering a hovering hummer’s wings “burn” 133 watts of power per kilogram of weight. Compare that to a marathon runner’s leg muscles, which use about 15 watts per kilogram.”
-Kathy Wollard
Author of How Come Planet Earth


#1 by Shelly on May 21st, 2012
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Hi Jack its Shelly I never knew anything about the humming bird well I knew a couple of things. But what ever it doesn’t matter so cool facts about the humming bird.
Bye
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