Here’s what you’ll learn when you read this story:Pseudoscorpions can be found in habitats around the world, including bookshelves in your home. A study by South Korean scientists discovered four new species of dragon pseudoscorpions in a cave while doing field research. Far from the cozy confines of a bookshelf, the scientists found these miniscule critters (stretching only between one and three millimeters) in a cave system during a field study. “However, a recent preliminary barcoding study has indicated that the species biodiversity in surface habitats must be significantly higher. Because these creatures live in caves, they have numerous adaptations that are considered “troglomorphic,” due to living in constant darkness.