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Birds might be able to see magnetic fields, thanks to special proteins in their retinas

April 4, 2018 5:05PM ET

Zebra Finches (www.efinch.com)

Birds have a built-in magnetic sensor to help them find their home and migrate safely - all thanks to proteins in their eyes. Image credits Popular Science Monthly Volume 83 via Wikimedia. Common wisdom holds that iron-rich cells in birds' beaks act as microscopic compasses to help them navigate.

Birds might be able to see magnetic fields, thanks to special proteins in their retinas

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