Oh hello! Meet Demodex, the face mite, a microscopic arachnid that exclusively lives on human skin.

哦，你好！来见见蠕形螨，面部螨，一种只生活在人类皮肤上的微小蛛形纲动物。

In fact, face mites are so faithful to humans, that they've been used to study human evolutionary history by proxy.

事实上，脸螨对人类非常忠诚，它们被用来研究人类进化史。

Meet Demodex, the face mite, a microscopic arachnid that exclusively lives on human skin.

认识一下面部螨虫蠕形螨，这是一种只生活在人类皮肤上的微型蛛形纲动物。