|Known locations||Le-Wahi (formerly)|
Maze of Shadows (formerly)
Rock Worms are small Rahi that live in underground nests.
The rock worm species was created by the Makuta using Viruses and Liquid Protodermis to be one of the Rahi to inhabit the Matoran Universe.
Many rock worms found their way to the island of Mata Nui, where they took up residence in Le-Wahi and Po-Wahi. Once, Pohatu defended Po-Koro from rock worms, using boulders to fight from a distance, ricocheting them off of the cliff walls and defeating dozens of the Rahi at once. Jaller and Takua once fell into a rock worm nest in Le-Wahi.
After the release of the Bohrok swarms, the rock worms of Mata Nui returned to Metru Nui.
After the Great Spirit Robot was critically damaged in the Battle of Bara Magna, the surviving rock worms left the Matoran Universe and immigrated to Spherus Magna.
Mutated Rock worm
During the Toa Metru's fight with the physical form of Energized Protodermis, the substance mutated a rock worm into a massive creature. Whenua drove it off by blinding it with his Kanohi Ruru and forcing it underground.
Abilities and Traits
Although small, rock worms are carnivorous, as well as poisonous. How rock worms hunt is not known to Matoran.
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