Give me weird animal facts

Yeah, mutations are random. Some human beings have genetic anomalies that cause constant lifelong diarreah, and if we were still hunter-gatherers who were vulnerable to predation, humans with that genetic anomaly would move more slowly through the wild, find fewer mates, and smell more strongly - which would be a disadvantage in hunting, and which would make them more valuable to hunters. So that is still a random mutation that pops up randomly, and has not become part of our standard DNA pack.

Human beings who poop less often bred more over the eons, because pooping less often and having some personal control was a survival advantage. If a random mutation had ever given any human the ability to expel their poop fifty feet away like those caterpillars, or to hit targets with it, then those humans would have had a huge evolutionary advantage, as it would give humans the ability to mislead predators, drive off enemies of their own species, and rest better as they'd never have to leave the communal campsite at night... but that never happened as mutation is, indeed, random. Instead, humans have had to settle for using their manual dexterity to fling the poop, which explains a lot about us.

That theory may make sense for one or two examples, but to say that of every creature is just too improbable.