How can an ancient uyoga War that took out a huge portion of Earth without any other physical effects on it mutate living things enough in a thousand years that suddenly Candy and samaki are dominant creatures? Because it's Adventure Time. That's all the answer wewe need.
I believe it's kwa the fragment of light au some other crap. Watch the episode when Finn and Lady start hanging out and Jake gets jealous. She explains it to him.
