Dog owners have observed some odd behaviors among their pets — sniffing butts, eating garbage, giving unconditional love — but one habit has probably escaped their attention: Dogs apparently prefer to poop while aligned with the north-south axis of the Earth’s magnetic field. The researchers found that the dogs preferred to poop when their bodies were aligned in a north-south direction, as determined by the geomagnetic field. This latest set of findings, published last week in the journal Frontiers in Zoology, joins a long and growing list of research showing that animals — both wild and domesticated — can sense the Earth’s geomagnetic field and coordinate their behavior with it. Birds also use magnetic fields to migrate thousands of miles, some research suggests.
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