>>48337035Animals exist in the Pokemon world, as evidenced by dex entries, promotional material, and the anime.
Lieutenant Surge, likely in his 30s, fought in the Pokemon war. This was a war brought about by a new weapon that humanity suddenly had access to, Pokemon.
People in the early games mention being old enough to remember life before Pokeballs being invented.
Fossil resurrection is a process that was invented within a couple years of the events of Red and Green, likely made possible by the study of the Pokemon that had appeared a mere 20 or so years ago.
The Pokedes is only just being made to catalogue these new creatures during Red and Green, that wouldn't be the case if Pokemon had existed on Earth the entire time.
