It is well known that the Gungan species is divided into two races, the Otolla and the Ankura, even to small children. However, the astonishing biological diversity of Naboo seems a subject still in need of some study.
Darwin showed that there can be great variation within a species, with the finches of the Galapagos as an example. But it was also demonstrated that these variations are the result of natural selection.
- What are the major hypotheses for the divergent physical characteristics of the two main Gungan races?
Also, according to archeological records, their civilization is said to stretch back ~.5 million years to the last glacial maximum—is it known if this may have been a factor?