Animals for other menial tasks

[zgrssd]

Many animals can be used for the menial "hauling" task. Wich is distinct from "refueling" (as that requires some level of manipulation and understanding most animals lack).

Two other (somewhat) menial tasks are cleaning and fire fighting. So how about designed animals for those roles too?

Rimworld humanity casually created creatues like the Boomaloope. Wich does nothing but produce fuel, something inherently useless except for human colonies. Now the boomaloop has a intersting ecological niche that actually supports it's function via selective pressure: It's only defense is it's explosion, so animals select for them to have the most volatile chemicals possible.

(anti)Fire devil
This would be the Firefighting animal. Several animals have been seen fighting or setting fire, but this one needs a biological imperative to do so. Now ecologically the issue here is that Forest fires are a mandatory feature of nature. Fighting them too agressively is a really bad idea. It leads to the Smokey Bear Effect (https://www.npr.org/2012/08/23/159373691/how-the-smokey-bear-effect-led-to-raging-wildfires?t=1539579164891). Without regular smallscale fires, a lot of firefuel accumulates resulting in large fires.

Cleaning Jelly
To be totally honest: I keep thinking of the D&D gelatinous cube and similar Oozes for this. But the namesake of the Schlock-Mercenary Webcomic has been used as biological cleaner a few times. It only requires excreting acids that attack anything but metals, stone and wood. Schlock can do that selectively, but of course the jellies would need to be engineered for it (and given a selective pressure not to loose those limitations).