The Krites are from another unknown planet, and in the beginning of Critters, the last eight Critters are being transported to an intergalactic prison planet (presumably for preservation). There were ten Critters to be transferred, but two were killed as they were apparently eating everything in sight. It appears they are an officially recognised species in the Intergalactic Council, as they have the reputation of making Intergalactic officials nervous because of their ferocity.