OCTOPUS is a carnivorous marine MOLLUSC, related to the CLAM, OYSTER and SNAIL but without the shell. A member of the class Cephalopoda, which also includes SQUID, the octopus has a baglike body and 8 long arms equipped with powerful suckers. Typically octopus are bottom dwellers, living in rock dens on the ocean floor, and they move either by crawling or swimming using water propulsion. They pounce on their prey (fish, CRAB, SCALLOP, SHRIMP), enveloping it in an embrace, then biting with a...

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