Science & Nature | January 26, 2010 | 0 comments

Migratory Monarch Butterflies 'See' Earth's GeoMagnetic Field [pics, video]

source: http://scienceblogs.com/grrlscientist/2010/01/migratory_monarch_butterflies.php

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GrrlScientist
What do migratory monarch butterflies and jet-lag in humans have in common? We share a photoreceptor with monarch butterflies that they use to read the earth's magnetic field while they migrate and to help maintain their circadian clock function.
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