The gods are upset on how the humans have run the world, but they can't seem to find its replacement.
The gods thought that it would now be interesting to see how Pokemon do in the real world. If Mudkip was chosen for men, and
Squirtle for women, it would mean that it would be that men would be anthro Mudkips and women would be anthro Squirtles.
The humans would never be de-evoled into the real species chosen to take over. Which Pokemon is chosen?