|Series||The Legend of Zelda series|
|First game||The Legend of Zelda: The Wind Waker|
Korok are a species found in The Legend of Zelda series, they first appeared in The Legend of Zelda: The Wind Waker for the GameCube. They are said to some how be a dramatically changed version of the Kokiri that appeared in The Legend of Zelda: Ocarina of Time, but how they merged into this, tree-like form is unknown.
In the game, they are known for their ability to fly, and this will be showcased when Link takes control of Makar after he rescues the tiny plant-like being. They take care of the behemoth known as the Great Deku Tree, who has been suggested as a descendant, or at least a sprout of the Great Deku Tree from the Ocarina of Time.
Once a year, the Great Deku Tree sends out the Korok to plant trees all across the Great Sea's many islands in hopes that one day forests will make a return.
It's uncertain if the species did in fact evolve from the Kokiri or if they transformed into the species magically, which would certainly make more sense seeing that it is impossible for a humanoid species to turn into a plant such as the ones featured. On the other hand, it is unknown if the Kokiri really is their real shape, they could possibly be magical creatures capable of taking any shape that the Great Deku Tree see is fitting. Why they were transformed into this form will probably never be known.