zoo animal list

So when trying to plan a realistic zoo, I noticed that there are some very common zoo animals missing in the game, but their niche at zoo is filled by rarer counterparts. This is not necessarily bad, but I think in the context of the meta-wishlist, it would be useful to figure them out, as...

Loving what I'm seeing so far, but have a suggestion or "wish" on the Animal Trading Tab. Would it be possible to add a feature that would show if you already have the animal species in your current zoo and how many you may already own? I'm a noob, so maybe I'm missing this as an option to do...