The first species, called Demodex folliculorum, lays its eggs in your hair follicle ... groups of humans migrated across the world. For example, a study found that European mites genetically ...
From microscopic mites dwelling in our hair follicles to sizable tapeworms inhabiting our intestines, the human body plays host to a surprising array of organisms. Some, like Demodex mites ...
All of this is to say that if one can imagine a habitat, however narrow, mites are there, even if that habitat is hard to reach on legs just microns long and a tenth the thickness of a human hair.