Go to our help page if you need assistance configuring your browser to play sound files. Context - Snakes are covered with scales. Context - If a snake has fangs, it has poison in them. Molting is the process by which snakes shed their old skin as they grow. When this happens the dead skin peals off.
Snakes rub up against a rough object like bark or rocks to start molting.
Then they crawl out of the old skin, usually shedding it in one piece. Snake scales are made out of keratin, the same substance as your fingernails. Snakes do not chew their food. The backward direction of their teeth allows the snake to pull the food into its mouth, which is swallowed whole and digested in the stomach. Snakes use their tongue in a flicking motion to pick up particles of air, water, etc.