Gizka were small, reptilian creatures that could be found all across the galaxy.
Whatever their native world, their extraordinary reproduction rate led to a fair amount of gizka on many worlds, even including uncharted planets such as Lehon, finding their way from the wreckage of crashed starships. It has been alternatively postulated that they came from that planet originally, spreading along with the Infinite Empire. Their exponential population growth led to them being considered pests on almost as many worlds as they inhabited as they commonly ate electrical wiring.
They were the source for the delicacy, gizka steak. Some species of sentient carnivores, like Trandoshans, seemed to think that gizka were one of those kinds of animals that "everything tastes like."
The Ebon Hawk once played host to a temporary colony of gizka, in an incident involving mishandled cargo, an Aqualish, and a Tatooine shipping company.