Forget GPS. Get a cow

WASHINGTON (AP) - August 26, 2008

Researchers say cattle seem to know how to find north and south.

They studied satellite photos of thousands of cows around the world. And it seems that most cattle that are grazing or resting tend to align their bodies in a north-south direction.

The findings held true no matter what continent the cattle were on.

Writing in the Proceedings of the National Academy of Sciences, the scientists from Germany and the Czech Republic say the Earth's magnetic field "has to be considered as a factor."

A German professor who led the research says scientists may now try to find out just how the animals align to the magnetic field, and why.

And, they're wondering if humans do the same thing.

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