龙 Triceratops 三角龙 Stegosaurus 剑龙 tyrannosaurus 霸王龙 kinds of dinosaurs plant-eaters meat-eaters disaster? climate changing? over hunting? … What might be the reasons for their extinction? Guessing 1. When did dinosaurs live? They lived on the earth Tens of millions of years ago, long before humans came into being . 2. When did dinosaurs disappear? Animal Extinction Dinosaurs died out suddenly about 65 million years ago. Reading 3. What ’ s the rare new species of dinosaurs discovered in Liaoning Province? A bird-like dinosaur which could not only run but also climb trees. 4. What might be the possible reasons for their extinction? Maybe that ’ s because a huge rock from space hit the earth and put too much dust into the air or because the earth got too hot to live on.
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