After a long period of stability, the feathered silkworm was pushed to evolve by the emergence of a number of new environments, namely the warm and temperate forests and plains of the super-continent. The abundance of vegetation and lack of predation in these environments allowed the gliding sagworm to increase greatly in number, to the extent that they feed in an almost unsustainable fashion. The feathers on their back have extended to catch the wind, and the body of the worm has grown lighter. Consequently, the worms' lives are governed by the wind. Forming gigantic 'swarms,' the worms are blown from place to place, and wherever they land, they feed voraciously until no vegetation remains. A chemical signal released by hungry worms prompts the super-swarm to take to the air, using their silk strands to gain the initial lift required, where they drift until the wind once again drops and lands them in a new feeding location. Due to this pattern of behavior, sagworms can be found all over the continent, as long as there is vegetation and it doesn't get too cold. Their main predators are the various flying plents, although even their predatory action cannot significantly dent the global sagworm population.