Fatuusa

Fatuusa is a genus of clear, parthenogenic Bulbusa species similar to a complex, functioning eukaryotic cell. While individual shapes/sizes differ between species, each is characterized by a clear outer membrane, bulbous shape, and a single respirational/esophagal hole.

Pellucid Wisp
(Fatuusa purifica)

The Pellucid Wisp, Fatuusa purifica, is a large omnivorous species of wisp typically residing in acrid environments. They are nocturnal in nature, emitting a faint bioluminescent glow as they float lazily around the swamp. Appearing as glowing, levitating orbs from afar, it's not hard to imagine how they received the common name "wisp." Their interior structure is similar to that of a large eukaryotic cell with basic sensory capabilities; smaller cells make up larger, specialized structures parallel to the cells we know. In order to lift off from the ground or a sprig, they inhale large amounts of air and rapidly release it from their main exterior opening. Once they are airborne, they begin steering through exhalation out of the same exterior hole. When in flight, their tapered end (where the hole is) is always pointed downward. It is also through this hole that they secrete residue, crafting a trail only recognizable to other members of the species. As others begin following the trail, they begin to form a moving network through the environment, a complex, mappable movement formed after many years. In the event that they bump into each other, pellucid wisps will often "join forces," so to speak, working as one complex whole to find food. In terms of diet, they will ingest any organic matter, be it nutrients from the surface of a sprig, sustenance from the skin of an animal, or, in the case of this species, some will parasitize triacrura eggs in dead skeleton plants. Nutrients are absorbed either through the exterior hole (for larger items) or through their semipermeable surrounding membrane. Often, all it takes to feed is to land on the surface of organic matter. Suction is often achieved, to the detriment of the organism. Sprigs are left with small, dark spots devoid of life after being preyed upon by these wisps, and Xi'ialoan animals are especially susceptible due to the semipermeable nature of their skin. Strong immune systems, mentioned here, keep permanent damage from wisps at bay for complex organisms. However, humans are much more susceptible to wisp-related damage, and it is theorized that these animals will cause human skin to wither and fail to carry out basic functions. Cancer is also a valid possibility. Pellucid wisps typically grow to around 4-8 in (10-20 cm) long and typically weigh around 0 lbs (0 kg). 

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