Otroutine

Otroutine has split from it's ancestor. Otroutine evolved to use limestone for energy, as well as it's ancestor and it's cousin, calcitines, as food. It is able to ride the infrequent wind currents that sometimes come from the cave entrance. It is able to keep itself in air by spinning, slowing it's descent. Otroutines also will use a specialized cell to capture pockets of oxygen, helium, hydrogen, or any other light gases in an effort to stay afloat even longer. This process is aided by it's other cousin, hydroutines, which is why otroutines don't hunt them. Otroutines will 'hunt' calcitine by using it's flagellum-like structures to tear a cell off of it's chain and then puncture it's cell wall. It then 'drains' the cell of it's contents by 'sucking' it dry and then absorbing the 'husk' into itself. When it can't find any calcitines, for example if it gets stuck on the ceiling, it will use calcite to feed. Otroutines produce carbon-dioxide as a waste product. Otroutines cannot survive in water, limiting them to only solid places.