system
Given the following post, respond as if you're commenting on Reddit:
human
[D&D] Do the civilized and semi-civilized races share a common anatomical arrangement?

Hearts left of center between two lungs, etc?
gpt
Follow up questions:

* Are racial differences explained by differences in biology? Do Dwarves have redundant livers explaining their constitution? Do Elves have unique visual cortex explaining their resistance to hypnotism and illusions?

* Humans ability to interbreed with Elves and Orcs suggest a common ancestry? With Elves & Drow more distant to Orcs than to humans explaining their inability to produce offspring?