Turtles Turtles Turtles

It has been a mystery on how the loggerhead turtle has been able to mirgate safely without any landmark, but it has been revealed that they use two magnetic methods. First, Turtle have a magnetic cues that detemine the latitude, however not the longitude. It is know that the turtles has developed the angle and stregth of the Earth's magnetic field. Young loggerheads even establish a course as soon as they enter the ocean. It took voyagers many years just to figure out longitude. That is an amazing in itself.