The Rocklice are large, insect-like critters, with six legs (which are large and strong enough to jump great distances with) and the capability to drill into the Jungle Terrarium ground. When drilled into the ground they may sleep, or they may use their legs as enveloping cages to trap unfortunate bugs. The rocklice will eat any kind of insect, with the exception of the Dragonfly. They are one of the species in the game that will never become extinct, because if there are no more left in the world, an invisible "Rocklice mother" will produce more. However, they can be removed by deleting rocklice.cos from the bootstrap folder.