system
Given the following post, respond as if you're commenting on Reddit:
human
[Dark Souls Trilogy] Why So Many Individuals Developed into giants ?

It seems that for some reason  many of the enemies of DS 1-2-3 are much more taller than the average human being, while I know there are proper giants, why the others are so unnaturally tall?
gpt
Most of the bigger enemies are not humans but a different race. Humans, who are the dark race, are much smaller than those who descended from the Lords of the first flame. The only humans are the undead since they're the only ones who can bear the dark soul. The larger enemies such as the black knights, silver knights, bosses, etc are part of the gwyn's race of Lords while humans are part of the furtive pygmy's race of dark. 

This is why gwyn and fire Lords want to link the first flame to extend the age of fire, and extend the age of Lords. The age of dark is not the end of the world but rather the beginning of the age of humans.