Sea turtles nest in a wide, warm belt around the world. They all return to the same beach where they themselves hatched in order to lay their eggs when they reach maturity. This ability to swim sometimes thousands of kilometres to reach their beach of origin is still a mystery to the scientists who think that their sense of smell plays an important role in this.
All sea turtles in the world—the Mediterranean, the Atlantic and the Pacific populations are endangered species. Turtle specialists think that some of the Mediterranean sea turtles migrate from the Atlantic whereas some only stay in the Mediterranean basin.
Conservationists and researchers try to determine sea turtle migration routes by placing special talgs on the turtles.