| 1 | The fossils of "Shandingdong Man" (UPP) discovered in Zhoukoudian. | |
| 2 | The fossil (skull) of "Peking Man" (LPP) discovered in Zhoukoudian, Beijing. | |
| 3 | About 450 million years ago, the area around Zhoukoudian used to be an ocean. | |
| 4 | Yesterday Lisa and her parents went to see Peking Man at Zhoukoudian near Beijing. The bones of Peking Man were found there. | |
| 5 | The samples were made of Jinan gabbro, Dianchangshan marble, Zhoukoudian limestone and Xiaolangdi sandstone. |