![]() ![]() With such a strangely-built nervous system, scientists have long suspected that octopuses' arms may have a mind of their own and act autonomously from the central brain. But unlike dogs and other vertebrates, where the majority of neurons are in the brain, over two thirds of the octopuses' neurons are located within their arms and body. Octopuses have an extensive nervous system, with over 500 million neurons, similar in number to that of a dog. "So this raises a huge computational issue for the brain and their nervous system has to be organized in a really unusual way to deal with all this information." Tamar Gutnick, an octopus researcher formerly at the Okinawa Institute of Science and Technology Graduate University (OIST). The suckers can grasp, and the arms can twist in an almost limitless number of ways," said Dr. ![]() First off, there are eight of them, each with over 200 suckers that can feel, taste and smell the surroundings. ![]()
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