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Octopuses challenge our usual idea of where thinking happens. About two-thirds of an octopus's neurons lie not in its central brain but in its eight arms, each of which can taste, touch, and react with a striking degree of independence. An arm can locate food and begin guiding it toward the mouth even when the central brain is occupied elsewhere. Researchers describe this as distributed control: the body shares the work of decision-making rather than waiting for orders from a single command centre. This arrangement may explain how octopuses handle so many tasks at once while exploring cluttered, unpredictable surroundings.