DrHellenbachGZ
回复@SisterMcdull: It's called melanine pigmentation, which helps to protect the skin from sunburn or ultraviolet rays, which are the source of skin cancer. //@SisterMcdull: And the Black color of our ancestors was evolved for protecting them from diseases. They had black colour su 展开全文#学术前沿#【黑是为了防癌】最新研究声称，出现在一百多万年以前的暗色皮肤，是我们非洲祖先为了防止患上皮肤癌进化而来的。当古代人类摆脱掉大部分体毛而且进入阳光普照的非洲大草原探险之后，才出现了这种变化。之前，他们的皮肤就像现在的黑猩猩一样，在毛发下有着苍白的皮肤。 转发 12评论 9 原微博