The turtles have unique patterns and that can be used for recognition of the individuals. I recognised one of the individuals to be the same as on a photo from 15 years ago. This is not unrealistic as they can become more than 80 years old.
By looking at the scales on each side of the head it is possible to identify single individuals. Learn more about recognising sea turtles.
And you can become a citizen scientist and contribute to the knowledge of sea turtle. Participate in our collection.