Knights of Tezoth

Octopuses and their relatives have a more expansive and complex nervous system than other invertebrates, containing over 500 million neurons, around the same as a dog.[45][46][47] One part is localised in the brain, contained in a cartilaginous capsule. Two-thirds of the neurons are in the nerve cords of its arms. This allows their arms to perform actions with a degree of independence.[48] Learning mainly occurs in the brain, while arms make decisions independently when supplied with information.[49] A severed arm can still move and respond to stimuli.[50]