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About the Cover
Cover: Bees estimate the distance flown between a food source, such as this flower, and the hive by measuring the optic flow perceived during flight. After returning to the hive, the bees communicate to their nest mates the distance and direction in which to fly to reach this food source. M. Dacke and M. V. Srinivasan (pp. 3281−3286) demonstrate that bees may possess two different odometers − a 'community' odometer, which is used to provide information to nest mates via the dance and a 'personal' odometer, which is used by an experienced individual to return to a previously visited source. Photo by Marie Dacke.
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