The book scorpion (Chelifer cancroides), only a few millimeters long, is the best-known member of the pseudoscorpions, an order of arachnids, in Central Europe. It hunts house dust mites, bark lice ...

If you have old vintage books, you may have some book scorpions in your bookcase. Actually, you really should want to have them, even if they look scary and gross. Book scorpions protect your old ...