Some big snakes can grow up to forty-five feet long, as long as a school bus. Most snakes do not grow that large, but all big snakes are great hunters of the night. Each of these slithering reptiles uses its tongue to pick up an animal's scent and opens its jaws very wide to eat it. Readers follow Elaine Landau as she explores swamps, deserts, and forests to find out where snakes live, what they eat, and how they move.