Octopus Arms Host Most of Their Neurons, Giving Them Distributed Intelligence
Scientists explain that over two-thirds of an octopus’s roughly 500 million neurons are located in its eight arms, creating a decentralized nervous system.
Research shows that the majority of an octopus’s neural tissue resides in its arms, which are equipped with sensitive receptors for taste and touch. A nerve ring links the arms, allowing coordinated movement without constant input from the central brain. This distributed setup lets octopuses perform complex tasks such as unscrewing jars and manipulating sand. The findings highlight the unique way cephalopods process information across their bodies.
Why it matters
Understanding octopus neural distribution reveals new models of intelligence that could inspire robotics and neuroscience.
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