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Human eye could act as 'compass'

22nd June 2011

A study published in the journal Nature Communications has revealed that a light-sensitive protein in the human eye has been shown to act as a “compass” in a magnetic field, when it is present in flies’ eyes.

The research found that without their natural “magnetoreception” protein, the flies did not respond to a magnetic field. However, by replacing the protein with the human version the ability was restored. The findings may revive interest in the idea that humans can sense the Earth’s magnetic field.

 

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