Can turtles recognize the island where they laid eggs previously?
Yes. Adult turtles are known to return to the general vicinity of where they themselves were born some 35 years earlier, and then to return faithfully to the same spot thereafter. How they manage this remarkable feat of migration and navigation is not completely understood, but scientists now know that the turtles rely on the magnetic fields of the planet as homing beacons to their feeding and nesting areas.
