User blog comment:Adventuretimegenghiskhan/Is Finn the only human?/@comment-26442285-20120904031248/@comment-5111235-20120904045201

Well, if we ignore inbreeding, some scientists believe that the minimum viable population for terrestrial vertebrates to be around 500. However, I believe one of my anthropology teachers told me that for a group of organisms (not the whole species) to survive, then there needs to be at least 100 individuals at breeding age. Odds are there are over 500 humans left in the world. However, if there are less than 100 humans left on Ooo, then Finn will be the last on that island/continent.