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Old 04-01-2012, 11:39 PM
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Join Date: Jul 2003
Location: California
Posts: 7,594
Why are cows magnetic?

I don't know why I never heard about this until today, but apparently the world's pastures are being eaten alive by throngs of bovine compasses. See the news story or study.

All over the world, apparently cattle herds tend to orient themselves along a north-south axis. They're even affected by magnetic declination and high-voltage power lines.

I can understand the use of magnetoception in migratory species or ones that travel over long distances, but... why cows? Why?!
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