The gallratworm has split off from the snohawkworm. Unlike its ancestors, the gallratworms live in more social herds that will not only huddle up whenever there is danger, but also groom each other. Gallratworms have also lost a lot of their hair, including its ancestor's white mohawk; instead, it has short brown hair on its body that can not only sense its surroundings like its ancestor, but also sense moisture levels; this is important because they are poor at swimming in deep water. The gallratworm has also evolved sharp mandibles that can cut through tough plant and plent material.
The gallratworm gets its name because when it is time to lay their eggs, the gallratworm searches for a river plyent or stunted river plyent to lay its eggs into. When it finds one, the gallratworm bites into its victim and lays its eggs inside of them. Once the eggs hatch, they start to gnaw inside of the plyent roots. With all of this gnawing, it eventually creates medium-sized galls that the developing larvae live in. Once they become large enough, they burst out of the gall and wait for the plyent to be close enough to land, so the gallratworms can get off and continue their life cycle.