Board Thread:Episode Discussion/@comment-4141313-20181110034633/@comment-37320542-20181116173903

BenRG wrote: I'm guessing that the lunar debris bombardment had something to do with it. If the debris had high dust concentrations, the amount of energy in the environment could have fast-tracked evolution.

Or maybe, Salem had to wait a few tens of millions of years until another human race evolved. Which might explain how she went totally insane.

Either way, I suspect that the Brothers had altered a suitable primate species to develop into humans before they left. I suspect GoL in particular jumpstarted the creation of humanity from a suitable primate species and/or several animal species, hence the creation of the Faunus.