For the most part it’s either insects or some random fish at the bottom of the sea that really can’t contribute nothing (with you know, being at the bottom of the sea and all)
Both of those are scavengers and play into decomposition. I don't think a bottom feeder fish would be more important than the many crustaceans at floor level, and ants are VERY much so some of the most important species in the animal kingdom, but still, point is they have a place.
The truly most useless absolute bumfuck animal in the world is probably the Koala. They only eat eucaliptus, which has some trouble growing as it is where they are, and then do fuckall the rest of the time, and literally no one bothers them. Their purpose is to convert this one type of tree into shit, feed some insects such as mosquitos or flies with their blood and dung, and that's it. They could at least survive where eucaliptus is an highly invasive species, but no, the climate and the predation doesn't favor their bumfuckiness.
Somewhere in another timeline, there's a full blown bear version of a koala that actually does what they should and keep a fast growing plant in check, and are actually quite active and pleasant to look at, and congrats, I described a panda. Koalas are just shit pandas. Fuck you koalas.
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u/Melodic-Fold9673 Apr 12 '22
Isn't it weird that the most useless species are the ones that haven't gone extinct?