In a nutshell Scientists discovered sea turtles can learn and remember specific magnetic field signatures of geographic locations, effectively creating their own internal GPS system that helps them navigate back to important feeding grounds.

Loggerhead turtles navigate using magnetic fields, and new research has revealed more about this remarkable ability.

The turtles danced with the most enthusiasm in the tank when they knew they would get food. This was "strong evidence" that turtles can learn the magnetic signatures of "specific geographical areas", the researchers said. Even when tested four months later, the turtles still knew where they should dance.

Dancing turtles have proved for the first time that some animals use Earth's magnetic field to create a personal map of their favorite spots, scientists said Wednesday.