Cry4 – Bird’s Eye View

European robin

Two recently published studies may have found what allows birds to navigate accurately. It’s a newly discovered eye protein known as Cry4.

This protein is light sensitive and increases during periods of migration, which may allow birds to see the earth’s magnetic field.

The two studies involved Zebra finches and European robins.

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One Comment

  1. Dawn April 8, 2018 2:35 pm

    Very interesting, thank you for sharing. The mystery of bird migration may never be solved but this is a great beginning.