The Flatudon Megastank is of a singular design, possibly having branched somewhere along the evolutionary tree of the Blitherating Bobacorcki. The Megastank is, most basically, a large gas bag composed of thin membranes following the elementary phospholipid-bilayer construct of cellular structures. The inner organs of the creature include a fundamental (but necessary) respiratory system and a large, simple fermentory digestive tract. The Megastank has only one opening, which serves as both the mouth-type organ as well as the waste expulsory unit.
Living in the Gobi desert of Mongolia, the Flatudon Megastank, filled with Hydrogen gas, floats about the skies searching for prey. The primary, and oftentimes the only, source of the Megastank’s nourishment comes from the Gobi desert’s population of Bactrian Camels. When the Megastank comes upon one of these camels, it positions itself directly overhead, while the camel drinks from a water source, or is otherwise distracted.
As soon as it feels the timing is right, the Flatudon Megastank will release the gas in a large, long, loud expulsion, which will momentarily stun the camel. The Megastank will then fall, deflated, upon the camel, and as it does, it will take off a large chunk of the bewildered creature with its double row of razor sharp teeth. The camel will die, and the Megastank, unable to move for lack of limbs, will ingest the carcass, and lie upon the desert sands for weeks at a time.
In the heat of the sun, the dead flesh will rot inside the Megastank, producing large quantities of Hydrogen gas, which are held within the outer membrane “bag” that makes up the body of the Megastank. As soon as there is enough, the creature will begin to rise again, floating higher and higher as more gas is produced. Once full (and fully functional for all air-travel purposes), it follows the wind patterns, searching for a new source of prey. The entire digestive cycle of the Megastank can take anywhere from eight to twelve weeks.
Though the Flatudon Megastank has no predators, keeping off any potential carnivorous foe with the intensified smell of rotting flesh while on the ground in its “filling” stage, it does find some threat posed in the Black-Billed Pickernitty-Popper. The Pickernitty-Popper, though not normally found as far North as the Megastank, will sometimes stray into the habitat, due to cross-winds. Being an unintelligent creature, the Pickernitty-Popper will often mistake the Megastank for a Hardnosed Pickernitty, though the Pickernitties are not commonly (or ever, really) found in the air, and will attack the Megastank, piercing its membranes and leaving it useless unless it can heal itself and manage to lure a camel to its unmoving form on the desert sands.
Rating: Harmless, unless you are a Bactrian Camel, or riding one (I personally prefer Dromedaries). Really scary-looking, though.
Right thing to say if you ever meet one: “I am not a camel.”