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Scientists Unlock Mystery of Bird Flocks

How can flocks of birds, schools of fish or herds of antelope suddenly change direction -- all the individuals adjusting their movement in concert, at seemingly the same time? British researchers now have some insights into this behavior, which has puzzled scientists for a long time. A large flock of starlings performs its endless random dance above a beach in southern England, constantly changing direction as if commanded by a leader. Their movements resemble an organized structure --...

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