Whip Scorpions look quite dangerous, but they have no venom. They do, however have the ability to shoot a stream of liquid when riled up, consisting of a combination of acetic acid and caprylic acid. This gives off a vinegar smell, and thus the common name often used is "vinegaroon." Scientists tend to call them Uropygids, after the Family name Uropygidae. They are found pretty much around the world mostly in tropical regions.
Keith Christenson - Wildlife Biologist