 These were the ear canal, between the eyebrows, the back of the head, behind the ear, the heel, toenails, between the toes, forearm, back, groin, nostrils, chest, palm, and the crook of the elbow.The study showed a large fungal diversity across the body, the richest habitat being the heel, which hosts about 80 species of fungi.By way of contrast, there are some 60 species in toenail clippings and 40 between the toes.