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Old 08-28-2009, 03:06 AM
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Cows Really Do Have a Magnetic Sixth Sense
http://www.wired.com/wiredscience/2009/03/magneticcows/

Do humans have a compass in their nose?
http://www.theregister.co.uk/2006/11..._nose_compass/

These two quotes come from the second article:

Quote:
Some years ago scientists at CALTECH (California Institute of Technology in Pasadena) discovered that humans possess a tiny, shiny crystal of magnetite in the ethmoid bone, located between your eyes, just behind the nose.
Quote:
In any case, when it comes to humans, according to some experts, magnetite makes the ethmoid bone sensitive to the earth's magnetic field and helps your sense of direction
Bio-magnetism: An Awesome Force in Our Lives
http://sg.geocities.com/alex_kew/biomagnetism.html

Quote:
Blindfolded and ordered not to speak, the University of Manchester (England) students were escorted into a van without knowing where they were to be taken--or why. After traveling an hour on winding roads, the van stopped. With their eyes still covered, the students were led into a secluded clearing in a forest in hill country of central England.

R. Robin Baker, a university zoologist, took one of the young women aside and said, "I want you to point in the direction of our campus." Like most of the others with her on that autumn afternoon, she pointed with uncanny accuracy in the direction of her campus home.

The "homing instinct" is known to exist in many creatures, from snails to honeybees to homing pigeons. Baker argues that we humans also have a natural sense of direction, however subtle or ignored, that is as real as our senses of sight, smell or hearing. He is convinced that this sense is magnetic because in his experiments blindfolded students, who otherwise displayed a keen sense of homing direction, became disoriented when magnets were put in helmets and placed on their heads.