Keras are territorial crab-like Rahi.
After the Great Cataclysm, several Keras came to occupy the reefs of Ga-Wahi. The activities of the Bohrok swarms, namely Gahlok, forced many of this species onto the beaches of Mata Nui, where they were tamed by the Ga-Koro Guard with help from the Onu-Koro Ussalry. The Keras were fitted with special riding plates which allowed them to transport Matoran from place to place either by land or by sea.
In the Pit, the Barraki Carapar had a large number of these creatures in his army. The Pit Mutagen in the waters there caused these specimens to become vicious. These crabs took control of the Fields of Air temporarily, and the Mahri Nui Matoran sent the Toa Mahri to force them out, but the crabs retreated on their own accord when the Barraki came to negotiate with the Toa.
Abilities and Traits
Keras are highly reclusive and territorial. They are sensitive to high levels of sunlight, and feed on fish, both of which offered Mata Nui's Ga-Matoran a way to repay the Keras for their aid in the Bohrok War.
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- BIONICLE: Maze of Shadows (Non-canonical Appearance)
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