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.
Tortoises can live to a ripe old age. The oldest one ever known live to be 152 years old! But this might not be a record there could be even older tortoises the wild.
Snake stare because they can't blink. And they can't blink because they have no eyelids. Each eye is covered by a see-through scale that protects the eye. Snakes get brand-new scales each time they shed their skin.
The chameleon's sticky-tipped tongue isn't just longer than its tail, it's longer than its whole body! The lizard shoots it out in a twinkling and reels it back in with a meal.
Turtles don't have teeth, but their horny beaks have plenty of bite. Alligator snapping turtles are particularly fierce. One bite from them, and you could lose your toes!
Turtles
* Tortoises live on the land. Turtles have flippers for swimming, and live in the sea, Terrapins are tiny turtles that live in rivers and lakes.
* Turtles were swimming in the ocean more than 200 million years ago. They're the most ancient of all reptiles
The Komodo dragon may not have wings or breathe fire, but is truly awesome. It's the world largest lizard - longer than a car, and heavier than a couple of prize-fighters. When people first saw one about 100 years ago, they thought they were looking at a dragon.
The biggest snake is the Anaconda of South America, which grows up to 10 meters that's a long as a bus. The reticulated python is another whopper, but although it's as long as the anaconda, it's not heavy.