"Maybe? There's a thing some people at home can do where they can look at the chemicals inside a creature that cause that creature to be shaped the way it is, and more closely related creatures have more similar chemicals. I don't know how to do it, but if we ever find my world someone can check and see if humans are fundamentally more like orcs than like apes. But I don't think humans and apes can both have showed up from here, because we have remains from millions of years ago when humans looked really different. So if humans and apes there came from here, it would have been so long ago that they were all still one species, and they would have had to diverge into humans and apes there the same as here. But if humans showed up on two planes completely separately, that's weird too. And we have fictional stories about species the magic is translating as elves and orcs and dwarves and halflings, so that's weird again."