This video segment from IdahoPTV's D4K looks at the unique natural history and adaptations of snakes. How do they move? How do they hear without any ears? How do they move without any arms or legs? Learn about scales, forked tongues, venom, cold-bloodedness and the various ways they kill their prey.
Visit the D4K companion Web site to learn more about Snakes. D4K: “Snakes”