The monstrosities of their home planet, Archadons, are so far the dangerous creatures discovered on Hyrayah. They come out at any time of day, and hunt anything that comes by their cave. Their caves are located in the mountains and are usually close to the surface. Archadons have to eat every few hours because they have a very fast metabolism. Every few months male Archadons come out of their caves and fight for territory and mates. These battles can be extremely violent and often result in fatality.