It has four chunky legs.
Turtles. A turtle is an animal in armor. Much of its body lies within a protective shell, which has openings for the turtle's four chunky legs, short tail, and head. When danger threatens, many turtles pull legs, tail, and head into the shell. A type of tortoise can close its shell, too, although not as completely as the box turtle. Hinge-back tortoises have a hinge across the top of their top shell (the carapace) and can close in their back legs, protecting them. Although the shell, made of bone, seems to be the ultimate protection, it is vulnerable. There are seven species of sea turtles—the Kemp's ridley, olive ridley, loggerhead, hawksbill, flatback, green, and leatherback— and they live in most ocean waters around the world. Some of these ancient reptiles are homebodies, hanging out in shallow coastal waters their whole lives. Freshwater turtles usually have a hard shell, but in some species, it's too small to protect the entire body. Land turtles and tortoises that rely on the shell for protection have a hard, domed shell. Many turtles and tortoises can pull in all four legs and their head so that the shell protects them from predators. For the eggs to survive and have a chance of hatching, sea turtles must lay their eggs on sandy beaches. As they are developing, the embryos breathe air through a membrane in the eggs, and so they cannot survive if they are continuously covered with water. If disturbed, sea turtles will sometimes nest. Turtle— Spends most of its life in the water. Turtles tend to have webbed feet for swimming. Sea turtles (Cheloniidae family) are especially adapted for an aquatic life, with long feet that form flippers and a streamlined body shape.
http://teacher.scholastic.com/activities/explorations/adaptation/libraryarticle.asp?ItemID=32&SubjectID=120&categoryID=2 http://www.dummies.com/how-to/content/understanding-turtles-and-tortoises.html http://www.nwf.org/Kids/Ranger-Rick/Animals/Amphibians-and-Reptiles/Sea-Turtles.aspx http://www.dummies.com/how-to/content/understanding-turtles-and-tortoises.html http://www.conserveturtles.org/seaturtleinformation.php?page=seaturtle-faq http://animals.sandiegozoo.org/animals/turtle-tortoise
what kind of legs do sea turtles have