1. dinosaurs

2. T-rex It's jaws were up to 4 feet long and it's teeth grew up to be 13 inches long. Tyrannosaurus rex had two legs and was 40 feet long. Trex was a meat eater (carnivore)

3. Name's meaning: Tyrant Lizard King

4. Alive sometime in the last 6000 years. According to old earth scientists, T-Rex lived in the Cretacious Period, about 85- 65 million years ago.

5. Fossils. Other famous dinosaur fossil discoveries include the sauropods -- the Apatosaurus, Brachiosaurus and Diplodocus among others -- which with their long necks, long tails, and ginormous bodies were the largest land animals ever to roam the Earth.

6. Modern day dinosaurs "Most people believe that birds evolved from dinosaurs, but that’s all based on the shape of the bones," "Most people believe that birds evolved from dinosaurs, but that’s all based on the shape of the bones,"