Monarch Butterflies Employ a Magnetic Compass During Migration

Each fall millions of monarch butterflies use a special navigation system to transverse 2,000 miles from breeding sites across the eastern US to an overwintering habitat in central Mexico in specific groves of fir trees. Scientists at the University of Massachusetts Medical School and Worcester Polytechnic Institute have identified a new component of this complex system. They reported in emNature Communications/em that monarchs use a light-dependent, inclination ...

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Written by: editor - Saturday, June 28, 2014

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