I feel like the buildings could be clearer on what they do.
1st one is clear, it houses frogs. Upgrade for more frogs.
2nd one seems to indicate it speeds up growth from egg to baby frog?
3rd should increase the number of baby frogs I get out of each egg, but visually it doesn't seem to do so?
4th presumably increases the speed at which frogs lay eggs
5th one seems like it would shorten growth rate from baby frogs to adolescent frogs?