Are microscopic creatures with eight legs and their closest cousin is the spider.
Scientists have said that with hundreds, or thousands of such creatures living in our faces - two for each hair of eyebrows and eyelashes.
It is not known why they have chosen the most beautiful part of the human body, to live, reports Telegraph.
What is known is that creatures called Demodex, do not carry the stool, because they have no anus.
They stay hidden during the day, night and use to mate, and then the males die.
Life cycle, which continues female releases eggs.
In the video posted below, shows a female Demodex in the process of release of eggs.