The genetic study of lice strongly suggests they - and clothing - arose soon after modern homo sapiens began moving out of Africa and into the cooler regions of Europe.
英
美
- 对虱子起源的研究;强而有力的说明;随着人类衣服的产生;虱子也就滋生了;并且由非洲进入到气候较冷的欧洲地区.