Though green sea turtles have lived on Earth for 150 million years—since before the time of dinosaurs—they are now endangered and their population is decreasing! Many people like to eat them and hunt them for shells and leather. Sometimes they are accidentally caught and killed by the fishing industry that is trying to catch other fish. Green sea turtles are on the endangered species list, and there are many projects to try and protect them. One is the Sea Turtle Restoration Project.