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                    Scientists Unlock Mystery of Bird Flocks

   by George Putic

   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. VOA's George Putic has more.
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   [1]http://www.voanews.com/media/video/scientists-unlock-mystery-of-bird
   -flocks/2427354.html

References

   1. http://www.voanews.com/media/video/scientists-unlock-mystery-of-bird-flocks/2427354.html