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it has two eyes and four pairs of arms, usually bearing suction cups, they have three hearts, a hard beak with its mouth at the centre point of the arms. Most have no internal or external skeletons. They are egg layers . Octopus blood contains a copper rich protien. The nervous system is ighly complex. They have short life spans, some as little as six months, but others up to five years in exceptional circumstances

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15y ago

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