system
Given the following post, respond as if you're commenting on Reddit:
human
[Supernatural] On the origin of the species

Did the species that live on the earth evolve naturally? If no, why do earths scientists think they did? If yes, what the fuck did god and his angels do for billions of years?
gpt
At least once Castiel has stated he preferred Neanderthal poetry.  They were around in one form or another.

The evolution was probably nudged along in the direction they wanted it to go, but it seems like not everything was by their design.