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Octopus (animal)
Cephalopod
mollusks, phylum to which the octopus belongs
alternative names
characteristics of
circulatory system
habitat
hormonal regulation of coloring
intelligence
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predators
quotation
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scientific classification
Invertebrate
Invertebrate
, any animal lacking a backbone. Invertebrates are by far the most numerous animals on Earth. Nearly 2 million species have been...
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