system
Given the following post, respond as if you're commenting on Reddit:
human
[General fantasy] So, is evolution a thing in fantasy?

Like, did species naturally evolve, like on real world earth, and creation myths are just that, myths? The khajit never came from elves, they were just bipedal felines. Orcs, elves, and average humans are all just hominids that split at different times, etc? Or is it all magic?
gpt
It depends.

A couple of examples:

There are hints that evolution does occur on Planetos - some of the Maesters have fossils of creatures that are no longer known.

All the evidence is that Arda was indeed created by Eru Iluvatar. However Hobbits seems to have evolved - over a remarkably short time - from Humans, rather than being created as a species themselves.