A true master of camouflage, the Ruzafolio can be found in practically any deciduous forest. A spiky ridge juts out from either side of its club-shaped tail, mimicking the shape of a tree leaf. Over time, Ruzafolio populations in different geographical areas have developed a variety of tail ridges that mirror the shapes of the tree species most widely found in their particular habitats. The Ruzafolio prefers to spend most of its time on the forest floor, where the leaflike contours of its body help it blend in perfectly with fallen foliage and other organic debris. Although its compound eyesight is poor and mostly used to detect large moving objects, its legs are covered in thick bristles that help the creature feel out its surroundings on a minute level by sensing even the smallest ground and air vibrations. The Ruzafolio is an ambush hunter capable of remaining motionless for hours, blending into its surroundings perfectly. When an unsuspecting smaller insect passes by, the creature then jumps into action, disarming its prey with a lethally venomous bite.

The creatures that dwell in this rather desolate world still display some diversity in appearance, eating habits, and social behavior. Whether they have fur or feathers, skin or scales, their unique genetic makeup allows for a variety of colors and markings within each species. Despite limitations in food sources, herbivores, omnivores, and carnivores are all present in the food chain, and each species requires specialized care within a laboratory. Although the artificial setting of housing units and breeding pods precludes most opportunities to study true interspecific behavior, the interactions within and between species has been studied extensively in the wilderness by scientists daring enough to venture beyond the outpost’s walls.