During our excursions in the woods on Wiley Hill, Scout Master Art Johnson taught us that nature provided numerous direction finders. One indicator was the moss covering the north side of trees and rocks. “Proceedings of the National Academy of Sciences” reports that herds of grazing and resting deer and cattle tend to align themselves with Earth’s magnetic fields. Researchers observed 3,000 deer in the Czech Republic noting that regardless of wind or sunlight, they generally aligned to the magnetic north.  Researchers believe that many creatures can sense Earth’s magnetic field and the detection of the field enters into a fundamental role in spatial perception. Even if the creatures move over short distances the magnetism assisted their navigation.