Yeah, TL is greedy on this game, and there are a lot of gem traps, where lag might make a screen pop up, then the 6 taps you've already made end up buying a stupid mystery box (I've bought 3 accidentally). Anyway, that's why I stopped buying gems - I've basically given TL $20 that I didn't want to (there's no confirmation when you buy with gems, even though there is when you buy something with coins - weird eh? ) Anyway, start shooting for the 350k+ critters like Sloth and Jackrabbit. I have 2 jackalopes in the zoo right now to round out my mythical creature section (Minotaur, Flying Monkey, and Lunar Dragons as well). I threw my tarantulas in there since they are the only ones I've found with the same "scary forest" environmnet as the flying monkeys.