恐龙是史前世界著名的动物，它们曾在两亿多年前开创了生命历目前辉煌的"恐龙时代"，但在六千五百万年前，恐龙灭绝了。人们通过恐龙化石才得以知道这种动物的存在，并一直努力试图通过这些化石还原恐龙的生存场景。（Dinosaurs were prehistoric world famous animals, and they created the glorious "dinosaur era" more than 200 million years ago. But 65 million years ago, the dinosaurs extinct. People know the existence of this animal through the dinosaur fossils, and have been trying to restore the survival of the dinosaur scene through the reduction of dinosaur fossils.）