Soft-bodied marine animals have evolved all kinds of adaptations. Why do complex brains show up only in cephalopods? Why don't we see complex neural architectures in jellyfish? This is my drawing (the last version) of a brainy jellyfish. A missing piece in the cognitive biosphere pic.twitter.com/RwXLVhkgqE
— Ricard Solé (@ricard_sole) February 17, 2023