From the BBC: Cattle shown to align north-south.
Have you ever noticed that herds of grazing animals all face the same way?
No, actually. They do?
Images from Google Earth have confirmed that cattle tend to align their bodies in a north-south direction.
Wild deer also display this behaviour — a phenomenon that has apparently gone unnoticed by herdsmen and hunters for thousands of years.
In the Proceedings for the National Academy of Sciences, scientists say the Earth’s magnetic fields may influence the behaviour of these animals. [continue]