2 points
Uruk hai were created from clay or something like that. They’re the ones you see come out of the pit in the LOTR movies.
2 points
They must be something else though. As even Melkor was not able to create, only twist and distort. I doubt his lesser could do that which he could not. I don’t think even Saruman could create life.
2 points
I dont think there is a canon to the Uruk hai origin other than they are “…cross between orcs and men…”. The depiction of them coming from the ground is just how Tolkien described “…worm their way out of the ground like maggots…”
In reality its likely slaves of Sauron and orcs making Uruk hai in a not so pleasant way
