Many kinds of dinosaurs' bones (find) recently by Chinese scientists in Nanyang, Henan Province. the scientists inspected the bones, they were surprised (spot) these dinosaurs could not only run the others but also climb the trees.
Dinosaurs died suddenly around 60 million years ago. Some scientists think came after an (expect) incident when a huge rock from space hit the earth put too much dust into the air. Others think the earth got too hot for the dinosaurs to live on any (much). Nobody knows sure why and how dinosaurs disappeared from the earth in such a short time.