The German-language medical encyclopedia Pschyrembel Klinisches Wörterbuch features an entry on the Steinlaus (Stone Louse, Petrophaga lorioti), a rock-eating animal. The scientific name implies the origin: a creation of the German humorist Loriot. The Pschyrembel entry was removed in 1996, but after reader protests was entered again the next year, with an extended section on the stone louse’s involvement in the fall of the Berlin Wall.