Dogs line up with earth's magnetic field before doing their business

January 2, 2014 6:51:12 PM PST
You've probably seen dogs circle around and around before they settle down to a sleeping position. Now, a new study in the Frontiers of Zoology says dogs also move in a specific way when they go to the bathroom.

Researchers say they line up according to earth's magnetic field.

Scientists are not sure why or how -- only that they do.