This scenarios is more for fun. I just want to see what scenarios you guys came up with.
Let's just say that somehow, humans don't cause any extinctions in any species of animals or plants (even plausible ones like mammoths and ground sloths, for example). What would happen if all of these species are still alive today and people are still similar to IRL (in culture, buildings, religion, entertainment [theme parks, zoos, movies, etc], and many others), other than formerly extinct species still being around?