If I may say, sir, you have, in my eyes, just won the Zelda Dungeon. Well done.
And, as far as the actual reproduction of Gorons goes, I'm going to actually call this quote relevant, because it's probably just the best explanation.
I think female gorons just look very similar to the males.
beings made of living stone.
Now the next step is understanding just how coral reproduces, by budding.Coral polyps are tiny, soft-bodied organisms related to sea anemones and jellyfish. At their base is a hard, protective limestone skeleton called a calicle, which forms the structure of coral reefs. Reefs begin when a polyp attaches itself to a rock on the sea floor, then divides, or buds, into thousands of clones.
Taking this into effect one can think that the fact that all other random unnamed gorons are almost perfectly identical to one another outside of a few ransom named individuals. This is a common gaming convention but it could also be an explanation as to why they always look so similar. Even Medigoron and Biggoron look exactly like the others only with varying sizes.Budding is a form of asexual reproduction in which a new organism develops from an outgrowth or bud on another one. The new organism remains attached as it grows, separating from the parent organism only when it is mature. Since the reproduction is asexual, the newly created organism is a clone and is genetically identical to the parent organism.
At the same time they do tend to refer to each member of the tribe as brother, often calling individuals big brother. This could be a cultural trait as they also took to calling Link brother in OoT as well. Or it could be an actual reference to the entire tribe being related in some way."My dad is Darunia... Do you remember him? Dad named me Link after you, because you're so brave! It's a cool name! I really like it!" — Link the Goron
The tribe could in fact be related and all members might actually be brothers literally instead of figuratively."Kid, I like you! How's about you and I become Sworn Brothers?! No, there's no big ceremony involved! Just take this as a token of our friendship!" — Darunia
One must know our dance if he is to be called a Goron. If you dance well, I'll give you a Symbol of Brotherhood!"
So you are now a member
of our proud tribe, eh,
You should carve yourself
a home. They are perfect
for Goron life!