What do Tolkien's orcs look like

Registered since: 02/06/2002
Thanks for the answers, Ardapedia gives a few more answers, but some questions remain:

"Although Tolkien mentions that the orcs do not reproduce differently than elves and humans, no * orc women * are known from the books. Instead, an orc offspring (pronounced child) is mentioned at one point in the" Hobbit "."

-> 2799 D.Z. the orc Azog died, his son Bolg already existed before his death - so they lived at the same time, which fits the fact that orcs do not reproduce differently than we do.

If you combine this information, the question arises whether, due to the lack of orc women, e.g. humans / elves had to serve as the womb (at least seems to be a plausible interpretation).

To orc children: Ardapediaforum: "Who says it wasn't like that? After all, reports from the orcs in the Misty Mountains that Gollum occasionally snatched and ate a very young orc. So there were orc children, right? And where did they come from ?? "

-> So there really seems to be "original orcs" in the third age, but also their descendants.

To the Uruks:

"In the * The Lord of the Rings film trilogy (...): Gandalf * mentions during a conversation with * Elrond that Saruman used corrupt magic to cross orcs with goblins. He is referring to the army that the white wizard has breeds in the dungeons * Isengard *. Accordingly, the filmmakers decided that the * Uruk-hai * were crossbreeds of half-orcs (goblin people) and common orcs. In the novel, however, this is not clear. "

-> The scene where Lurtz is introduced in the film (out of a kind of slimy "birth shell") seems to be Jackson's interpretation of what the end of the creation of an Uruk looks like.
Although the scene could theoretically also be one of the painful orc healing methods, no reference is made to this (the scene is also interpreted by several fans as a birth or emergence).
Since I don't see a woman's body there, it seems more likely, in keeping with the statement that Saruman crossed orcs with goblins, that the scene shows not a birth, but a transformation / result of a crossing.

I just can't imagine how to imagine the intersection and what the fiery slime is necessary for.
Unless the goblin was female and in the slime the newborn was "raised" ...

How do you interpret all of this?