为什么早期的恐龙幸存下来了，而鳄踝初龙却灭绝了？怀特塞德表示还没有找到原因。
Why the early dinosaurs survived while the crurotarsans perished is not known, said Whiteside.
你知道恐龙为什么在大约65万年前突然灭绝了？
Do you know why dinosaurs died out suddenly about 65 million years ago?
你知道恐龙为什么在大约65万年前突然灭绝了？
Do you know why dinosaurs died out suddenly about 65 million years ago?
应用推荐