It is clear that a number of people, animals, plants and such were transported from Earth to Gor by the Priest-Kings and the Kurii. But, it is unknown whether man originally developed on Gor or Earth, or whether they both independently evolved men. Man may have originally evolved on Gor and then was transplanted onto Earth by the Priest-Kings, or vice versa. The Kurii may also have played a part in the creation of man. There is some evidence, anthropoidal fossils, on Gor that would possibly indicate that at least some men may have independently evolved on Gor. Thus, there might have been indigenous Gorean men and then Earth men brought to Gor. It is unknown whether any pure-breed Goreans still exist. There is no mention of any other types of fossils that have been found on Gor so it is largely unknown what other creatures may have existed in Gor's past that may now be extinct or only exist in the isolated wilds. So much is unknown about the two million years of history when Gor has been within our solar system. We have few legends or myths from this time either.