Before this feat, Professor Zhao had successfully reproduced images of some 20 ancient people based on their remains, either a mummified body or a piece of skull.

• 在成功复制史前人类形象图之前，赵先生还根据一些远古人类遗留下的已经木乃伊化的躯体或头骨碎片复制了20多位古人类的画像。