More houses means more land.....looks logical...why this not apply for zoo? More animals but no piece of land.....where to place all the animals and decoration? Only on top of each other and in the end the zoo looks like a huge mess......i get decorations from events just to sell them ......and some of them are nice.....but there is no room for all....i visited some other cities to see how they organize everything.....it looks very very crowded, and not nice.....cannot make difference between buildings, decorations...no harmony!