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  1. Cuttlefish - Wikipedia

    Cuttlefish, or cuttles, are marine molluscs of the family Sepiidae. They belong to the class Cephalopoda which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the …

  2. Cuttlefish | Description, Anatomy, & Facts | Britannica

    Dec 19, 2025 · cuttlefish, any of several marine cephalopods of the order Sepioidea, related to the octopus and squid and characterized by a thick internal calcified shell called the cuttlebone.

  3. Cuttlefish - Description, Habitat, Image, Diet, and Interesting Facts

    Cuttlefish, the ocean’s masters of disguise, are cephalopod mollusks renowned for their intelligence, sophisticated camouflage, and unique physiology. Often described as living kaleidoscopes, these …

  4. Cuttlefish Fact Sheet | Blog | Nature | PBS

    Nov 8, 2023 · There are more than 120 species of cuttlefish. They are found in the order Sepiida and are grouped into six families divided between two suborders. Depending on the species, cuttlefish range …

  5. Cuttlefish Animal Facts - A-Z Animals

    Nov 8, 2019 · Discover cuttlefish — intelligent cephalopods with color-changing skin, three hearts, ancient origins, and remarkable camouflage abilities.

  6. Common cuttlefish - Animals | Monterey Bay Aquarium

    Meet the common cuttlefish. With its eight arms and two tentacles, the cuttlefish is ready to hunt. When a shrimp or fish is in range, the cuttlefish aims and shoots out its two tentacles to seize its prey. The …

  7. What Is a Cuttlefish? Habitat, Diet, and Care - Biology Insights

    Aug 9, 2025 · Cuttlefish are marine mollusks classified within the class Cephalopoda, a group that also encompasses octopuses and squids. These invertebrates are known for their intelligence and …

  8. Cuttlefish, facts and photos | National Geographic

    Despite their name, cuttlefish are not fish but intelligent invertebrates related to the octopus, squid, and nautilus. These fascinating creatures can count, exert self-control, and have numerous...

  9. Cuttlefish (Sepia) - Ocean Info

    Common Cuttlefish (Sepia officinalis): Found in the Mediterranean Sea, North Sea, and parts of the Atlantic Ocean, this species is known for its large size (up to 49 cm in mantle length) and ability to …

  10. Common Cuttlefish Facts - Fact Animal

    Some of these species became the cuttlefish, and the common cuttlefish is one of the largest. This incredible animal is one of the brightest in the ocean, and not just because of its sexy zebra mating …