恐龙

The Dinosaur Dinosaurs are very big animals. They lived on Earth a long time ago. Some dinosaurs ate plants, and some ate meat. Dinosaurs had small brains compared to their body size, but they were very strong. Many dinosaurs walked on four legs, but some could even fly or walk on two legs. Sadly, dinosaurs died out millions of years ago. We can only learn about them in museums and books now.