Image credit:mouse: Baggie Bird 1 http://bit.ly/1LpXV9T, compass: wikimedia commons
http://bit.ly/1H9va0c, illustration by Michael Greshko
According to a study in Scientific Reports published on April 29, wood mice placed in a container prefer to build their nests in the parts of the container closest to magnetic north and south. When researchers created an artificial magnetic field, the mice nested in line with the new north-south orientation. Scientists suspect that this compass sense comes from electrons dancing around in the mice's eyes.
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