Birds get their internal compass from this newly ID’d eye protein
‘Sixth sense’ lets zebra finches and European robins navigate using Earth’s magnetic field
![European robin](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/04/032718_DG_bird-compass_main.jpg?fit=860%2C460&ssl=1)
SIXTH SENSE During European robins’ long-range migrations, production of the protein Cry4 increases and that may facilitate the birds’ sense of Earth’s magnetic field.
Henrik Mouritsen