The gribble egg is the embryo of an alien species found aboard the derelict spaceship known as the Dusk. Gribbles are a mysterious collective of hive mind insectoids. The egg will evolve and hatch into an adult gribble, with evolution enhanced through the application of a formula called OmniGrow, which is made from a combination of materials found aboard the Dusk.. The gribbles are remarkable for their ability to quickly grow into an adult only a few days after hatching! While wild gribbles ferociously defend their hive against invasion, those raised by Breakers make wonderful companions and love to play.