Cow Pie

Somehow, cattle seem to know how to find north and south, say researchers who studied satellite photos of thousands of cows around the world.

Most cattle that were grazing or resting tended to align their bodies in a north-south direction, a team of German and Czech researchers reports in Tuesday's issue of Proceedings of the National Academy of Sciences.

The study sent Tina Hinchley, who with her husband Duane operates a dairy farm at the state of Wisconsin, to take a new look at an aerial photo taken of their farm a few years ago.

"The cows that were in the pasture were all over the place ... about two-thirds were north-south," Hinchley said.Two-thirds is close to what the researchers found in their look at 8,510 cattle in 308 pastures. In the study, 60 percent to 70 percent of cattle were oriented north-south, which Begall termed a "highly significant deviation from random distribution."

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