Psience Quest

Quote:People now feel fully betrayed by the long history of crabification (technically, “carcinization”) of different species over time. That means groups of crustaceans have evolved into crabs in five completely different contexts, giving rise to a meme that the long arc of history truly bends toward the crab.

Quote:Crabs are like Charles Darwin’s isolated Galapagos Islands groups, but they formed spontaneously instead of being evolutionarily fenced in.

It’s not just superficial shape that unifies the five evolved crab forms. The paper details neurological commonalities, shared circulatory systems, and more, while also detailing the organ and systems that differ in shape and size.