"Scientists have determined that the V-shaped formation that geese use when migrating serves two important purposes:
First, it conserves their energy. Each bird flies slightly above the bird in front of them, resulting in a reduction of wind resistance.
The second benefit to the V formation is that it is easy to keep track of every bird in the group. Flying in formation may assist with the communication and coordination within the group. Fighter pilots often use this formation for the same reason."
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