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#105150
Tue 10 Jul 2012 04:02:PM
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Joined: Feb 2001
Posts: 381,903
Launch Director
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OP
Launch Director
Joined: Feb 2001
Posts: 381,903 |
Migratory birds and fish use the Earth's magnetic field to find their way. Researchers have now identified cells with internal compass needles for the perception of the field – and can explain why high-tension cables perturb the magnetic orientation.  Source: The magnetic sense: Why powerlines confuse the internal compass of migrating birds
David Cottle
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