Modern science shows that sea turtles have been swimming the Earth's oceans for well over 100 million years--even pre-dating many dinosaurs. In addition, the turtle is an important symbol in the mythologies of many indigenous cultures, usually representing creation, longevity, and wisdom in these belief systems. Turtles are thus truly ancient beings-both in geological and mythological terms. As integral parts of the marine ecosystem, turtles are also useful indicators of the vitality of the overall marine environment.