A full-grown Toksa Muko is roughly palm-sized, although holding them in bare hands is not recommended. Their viscous slime contains contact irritants and is slightly toxic, helping to discourage would-be predators from attacking these slow-moving gastropods. An armor-like layer of hardened mucus that covers much of their body provides further protection. Toksa Mukos have two sets of “eyes”—one set of eyestalks and one pair of eyes located near its mouth. The eyestalks can discern only light and dark, while the other pair can detect a limited range of infrared light and are used to avoid potential threats. Many Toksa Mukos display false eyestalks as well, which serve the dual purpose of disguising their real eyestalks and allowing them to sense vibrations in the air. Though they are not a speedy species, Toksa Mukos are rather tenacious and show a great preference for carrion over other food sources. Some have even been observed clinging to sick or injured animals too weak to shake them off, beginning their meal while their prey is still alive.

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.