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Octopus / NOAA, OER

Octopus spotted by NOAA researchers during the 2002 Submarine Ring of Fire Expedition

Courtesy NOAA/Office of Ocean Exploration and Research
Definition: Cephalopods are animals in the Phylum Mollusca and Class Cephalopoda, which includes squid, octopus, cuttlefish and nautilus. Cephalopods are ancient species - they have been around for about 500 million years. There are about 800 species of cephalopods in existence today.
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