Sepioidea
Quick Summary
The order Sepioidea encompasses cuttlefish, which are marine cephalopods related to octopuses and squid. These animals are characterized by a thick, internal calcified shell known as a cuttlebone. Cuttlefish typically inhabit shallow, temperate, or tropical coastal waters and migrate to deeper areas in winter. They possess eight arms and two longer tentacles used for capturing prey. Cuttlefish are known for their intelligence, with large brains relative to their body size, and have demonstrated abilities similar to intelligent vertebrates, including self-control and learning. They are utilized by humans for food, ink, and as a source of cuttlebone for dietary supplements. The Sepiidae family comprises the true cuttlefishes.123
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