Why do Snakes have teeth and fangs?
As well as having teeth to grip their food, poisonous snakes also have a pair of fangs. They use these long teeth to strike their prey and inject them with poison, which shoots out of holes at the tip.
* An attacking cobra raises its head and spreads out flaps of skin on its head to form a scary-looking hood.
VIPERS
* Vipers have extra - long fangs that fold down flat when they;re not in use. It's just as well - they wouldn't be able to shout their mouths otherwise.
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