Now I know why there's not a lot of major cities of civilizations in the Hippo's Universe.
Most cities in the Hippo's Universe are small gather local towns and, small metro cities spreading all over the northern Hippo's Universe.
They also have the lowest population, I think in 9th or 10th in the entire 12 multi-Universes.
The reason for this is defensive strategy, to make almost all planets, to be not attractive for illegal migrants from the Lizard's Universe.