Firestar, you do realize that this is an idle game and isn't meant to be played? You're supposed to turn it on and leave it on and watch your character beat the shit out of monster's butts.
I just made a stable ecosystem with just herbivores and carnivores O-O
It's not really stable though, it's like I made seasons, like the plants get low and the carnivores rule then the plants grow and then the herbivores rule. WOW. This game is awesome :D