Anyone who has a dog has been frustrated by their circling when out to do their "business."  Cocoa did it to me this morning. I thought to myself "does she have to flatten every blade of grass?"

Actually, she doesn't and she isn't. Thanks to Reader's Digest (yep, that magazine is still around!), I know what possesses a dog to circle to poo. The Earth's magnetic field.

Some brave researchers watched 70 dogs poo 1,893 times over two years to figure out the dogs instincts made them circle so they could be aligned with the Earth's magnetic field.

I have no idea why that is important for their poo production, but now that you know, don't ruin your dog's mojo by interrupting!

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