The valakkar is a colossal worm indigenous to the deserts of Leir III. The largest animal on the planet, in rare cases they can grow over 300 meters long. Valakkar are born from clutches of two to three eggs that are laid in shallow nests in the desert. When the young emerge, they burrow into the sand, where they spend the majority of their lives. They move with the aid of overlapping plates that grip the ground, pushing them along without the need for limbs. As omnivores, they subsist on a mixed diet of vegetation, detritus, and meat, and have evolved to need very little water to survive. They are known to attack settlements, preventing the construction of permanent habitation on Leir III.