Welcome to the stone age, then. We've got barbecued stegosaurus.

... Actually no, but I have seen things that look like T. Rexes around.

In any case. Welcome to the wonderful world of Pokemon, land of various magic-seeming animals. Enjoy your stay, because you're stuck here. Though your world will be back to how it was when you go back, even though none of us know when that will be.