system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR & The Hobbit] How do orcs and goblins perpetuate their species?

Do they mate? I never saw any women (or maybe because we only see the man at war?) or they all look alike and you can't discern their sex?
gpt
The Silmarillion clearly states that they reproduce in the same manner as the Children of Iluvatar, ie via sexual reproduction. Whether orcs are just too ugly to tell the men and women apart or if the females are kept away from the front lines is never really explored.