Khameleon's biography and endings screens in Mortal Kombat Trilogy describe her as the last female of her race, as Reptile is the last male. They reveal that her race, the Saurians, also known as Raptors, were originally from Earthrealm, but a great war drove some of them out of that realm and killed the rest. They found a new home in another realm, which they called Zaterra or "New Earth." However, Shao Kahn eventually found it, and after defeating them in Mortal Kombat, he drove the Raptors to near extinction and then merged the realm with Outworld.