1. Non-venomous snakes usually have a round pupil in the eye; venomous snakes in the U.S. (except for the coral snake) have an elliptical pupil like a cat’s eye.
2. Non-venomous snakes usually have only one color.
3. Most non-venomous snakes have a spoon-shaped round head and venomous snakes will have a flat head.
4. Look for a rattle—some non-venomous snakes do shake their tails.
5. Most venomous snakes have a small depression between the eye and the nostril. This is called a “pit,” which is used to sense heat from their prey.
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