Green turtles are found all over the world in temperate/subtropical regions. It can grow up to weigh 300kg, and its shell can grow to be 100cm in length.  During its infant years, it eats anything from jellyfish to shrimp.  But as it gets older, it becomes more herbivorous and begins to feed mainly on seaweeds.

In Japan, green turtles spawn around Nansei Islands and Ogasawara Islands to the south of Yakushima and Tanegashima. Since it is listed in Appendix I of the Washington Convention, international trades of all kinds are prohibited.

In Kagoshima, various organizations conduct research around Yakushima in order to protect the turtles.