Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - Cretinism to Davis, David


Cuttlefish, small cephalopod (family Sepiidae) of Old World coastal waters. Its head is attached to 8 short arms and a pair of long tentacles for catching prey. Inside the body there is a flat, chalky cuttlebone that is used as a support and a buoyancy mechanism. The cuttlefish is a good swimmer. When alarmed, it protects itself by shooting out a jet of inky fluid and jerking violently backwards.

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