As per many people here, I am wholly against extinct species and mythological animals/cryptids. I'd also prefer that the game focus on species that are kept in captivity as there's so many to choose from (I managed to make a wishlist of 50 habitat animals, and pretty much all of them are distinct from each other). Cetaceans are a no go for me as well. They're too controversial, and there are other animals that I'd like to see if/when they get fully aquatic animals working (manatees are a big one for me). Other than these, I would be fine with anything really. I don't have a fear of arachnids and myriapods (centipedes and millipedes), in fact, I want more of them honestly.