One of Dungeons and Dragons' eternal mysteries: how in the world could a gigantic cube of caustic gel evolve in any environment other than a man-made dungeon?
Rebuttal There's always a 10' x 10' room for Jell-O
Better rebuttals Cubes are just industrial cleaners for dissolving those messy TPKs. Or causing them. Or, most likely: Insane wizards, who spend all their time gazing upon things NOT MEANT TO BE, enjoy jello as much as the next demented magic-user.
Even Better Much worse rebuttal These things didn't evolve, they were intelligently designed!
Yet Another Rebuttal It's the hat and the broom scenario all over again. Wizard creates a creature that can move and clean on its own to help tidy the dungeon (A clean dungeon is a fun dungeon!) before the PCs stop inside. Gives creature the ability to asexually divide, therefore covering more area.
- The simple truth A wizard did it!
- A nature documentary of the cube in its natural habitat