✔ 最佳答案
One word of dinosaur (Dinosaur ) comes from Greek, it means " the terrific lizard ".
Microorganism that the dinosaur lived in the ocean hundreds of millions of years ago originally. The microorganism has evolved gradually
Become the fish. Because there are more and more living beings in the ocean , the fish evolve out two walking on the land to grow again
Kind, then develop out the reptiles. Among them a piece of reptiles turns into the main dragon's subclass.
It has not called definitely (about 65 million years before) from later period to Cretaceous period since the Triassic Period that the dinosaur is one kind
Reptile of main dragon's subclass (Archosauria ) for 140 million years of hegemony land. Dinosaur
Different from other reptiles to enclose limb stand upright under the body when standing, but not spread to the side
. Have evidence show dinosaur may belong to warm blood now. And find that the duck-billed dinosaur builds the room by the nest ,
Prove that the dinosaur breeds young behaviors. There are more than 800 kinds of own dinosaurs that finds at present, at the ground bottom
Kind possibility more.