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Published online 3 July 2003 | Nature | doi:10.1038/news030630-5
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Dung beetles push by the light of the Moon
Insects use nocturnal polarisation to stay on the straight and narrow.
An African beetle relies on moonlight's polarisation to roll its dungball in a straight line, researchers have discovered.
Several species, including some insects, spiders and even birds, orientate themselves by the plane of the sun's rays.
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