very fun! I feel like this could very easily be expanded into a full game! The only criticism I have is that I think you should focus on fixing (or optimizing) the code so that the animations and movement work smoothly.
The only thing I'd change is adding a little dot or something to show when you've got something new on the evolution tab (or species tab) that you haven't seen yet.
So controls sorta work on chrome now, but for me at least the jump and screen transitions (as well as just falling) are really buggy and glitch out consistently.
