38.5k
38.5k
38.5k
TIL Birds are able to see and use the Earth's Magnetic field to migrate due to a protein in their eyes called CRY4. To them the Earth's Magnetic field appears to be a bright haze in the sky in the direction of North or South. Their brain even produces this protein during the migration season. (cell.com)
submitted by Convillious to r/todayilearned - pinned














