WASHINGTON – For millen-nia, people have watched the birds and bees and wondered: "How do they do that?" Thanks to high-speed film and some persistent scientists, at least one of the secrets of flight is now revealed. When birds, bats or bugs make a turn, all they have to do is start flapping their wings normally again and they straighten right out. That came as a surprise to researchers who thought turning and stopping took more steps. More>>
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