Reptile. Mastigodryas snakes are also known as “tropical racers.” Young snakes look very different from adults. They start out brown in color with bright white patches that disappear by the time they become adults. Like all snakes, they have neither eyelids nor ears. But they do have the same other organs that mammals have, including a heart, lungs, and kidneys. In the snake's tubular body, the organs are loosely lined up, and they can be pushed aside as food is digested. Snakes move by squeezing and stretching their muscles, creating traction with their scales. In general, females are a little larger than males. |