The Giant Crab Spider has a leg span of up to 30 centimeters, which likely makes it the world’s largest spider. The cave-dwelling creature was first mentioned in 1933 in the scientific literature, but it was not until 2003 that live animals were finally discovered in Laos. The males are slightly larger than the females, but both sexes share the same coloration. The Giant Crab Spider’s worldwide fame triggered a heavy demand among collectors and keepers, which led to the uncontrolled collecting of the wild populations and the virtual disappearance of this spider from easily accessible caves.