Measuring Beelines to Food

Science  04 Feb 2000:
Vol. 287, Issue 5454, pp. 817-818
DOI: 10.1126/science.287.5454.817

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Bees are known to communicate the distance from the hive to a new source of food through the waggle dance (if the food source is far away) or the round dance (if the food source is nearby). But how do bees measure the distance in the first place? Collett explains in a Perspective that recent findings ( Srinivasan et al.) demonstrate decisively that bees measure distance visually, integrating over time the optic flow of images that cross the retina as they fly through a landscape.