I'm not a scientist, but my understanding of the concept of carcinisation is that, in essence, all evolutionary roads lead to crab. You and me? Some day we'll be crabs. Spiders? Crabs. Butterflies? Crabs. Total War: Warhammer 3? You better believe it's on the road to crabdom, baby.
In fact, in the case of that last one, it's already at the end of the road. It's thanks to The Crustacean Nation , from a modder named Pegaz (brought to my attention by a video from YouTuber MonstersAbound ), which does the good and necessary work of adding "a fully playable campaign race of 🦀Crabs🦀 to the game."
These crabs are fully custom, because anything less would be an insult, and the faction features five legendary lords, three generic lords, three generic hero types, and 30 units of general crab fod