Thank you for playing and for the feedback! Yep, had to remove things from the screen so that it wouldn't get overcrowded while using an excuse that things can't survive several centuries. Currently, the extinction time only differs for trees and totems that survive one century longer. But I did plan to use more of it and one idea was to add some logical rules like remove people when there are no animals and trees or remove animals if there are no trees. As usual, had to stick to the minimum scope due to time constraints.