Tropical tortoises are slow-moving, shell-covered reptiles with a peaceful charm and some serious staying power. These tortoises come in a variety of species—like the Red-Footed and Yellow-Footed Tortoises—each sporting their own colorful patterns and markings. Most have domed shells, thick, scaly legs, and strong, beak-like mouths perfect for munching on plants. While they may not win any races, their gentle movements and curious natures make them fun to watch. Adults can range in size from about 10 inches to over 18 inches long, depending on the species.