Reason #1537 scientists are the worst great:
There is a word meaning “the tendency of nature to try to evolve a crab.” Someone noticed that a bunch of unrelated species independently arrived at “crab” as their destination, so clearly that is such a fabulous structural design that nature just occasionally looks at Thing With Shell and goes “ehhhhh fuck it, let’s make another crab.” And that person decided that there needed to be a word for this very specific thing. And thus: carcinisation.
