Leatherback, green sea and hawksbill sea turtles use the beaches for nesting. The loggerhead turtle, green turtle and leatherback turtle are rarely seen along the Connecticut shore. There are four species of sea turtle, the leatherback, loggerhead, Kemp's ridley and green turtle. Endangered Atlantic leatherback sea turtles are seen in the waters near shore. The largest of turtles (the leatherback turtle) nests on Trinidad's eastern and northern beaches. Their only predators consist of swordfish, tuna, sunfish, leatherback turtles and humans. Leatherback turtles face many predators in their early lives. Leatherback turtles are one of the deepest-diving marine animals. Leatherback sea turtles can be found primarily in the open ocean. This leathery carapace is also seen in the leatherback sea turtle. The leatherback has several characteristics that distinguish it from other sea turtles. It is also the world's second largest extant turtle after the leatherback sea turtle. Also, the leatherback sea turtle ("Dermochelys coriacea") is threatened. All species except the leatherback sea turtle are in the family Cheloniidae. In order to raise awareness for the plight of the endangered leatherback turtle.