An international team of geneticists has uncovered that the remarkable intelligence found in octopuses, cuttlefish, and squid stems from an ancient structural overhaul of their genomic framework. By meticulously mapping cephalopod chromosomes, researchers identified a massive prehistoric reshuffling of DNA that created entirely new functional connections between isolated genes. This unexpected molecular rearrangement allowed these marine creatures to evolve complex nervous systems, behavioral flexibility, and camouflage capabilities that mimic advanced vertebrate intelligence, fundamentally changing our understanding of cognitive evolution in the oceans.
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