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  1. Octopus - Wikipedia

    Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse invertebrates. Octopuses inhabit various ocean habitats, …

  2. Octopus | Description, Behavior, Species, & Facts | Britannica

    Nov 20, 2025 · An octopus is any eight-armed cephalopod mollusk of the order Octopoda. The true octopuses are members of the genus Octopus, a large group of widely distributed shallow …

  3. Octopus | National Geographic Kids

    The octopus performs its famous backward swim by blasting water through a muscular tube on the body called a siphon. Octopuses also crawl along the ocean’s floor, tucking their arms into …

  4. Octopus - Types, Size, Anatomy, Habitat, Diet, Lifespan ...

    Oct 31, 2025 · Octopuses are exclusively marine mollusks that constitute the order Octopoda within Cephalopoda, a class that also includes squids, cuttlefish, and nautiloids. They are …

  5. There Are 300 Types of Octopus Species, Some With Internal ...

    Feb 26, 2025 · Octopuses are known their eight legs, squishy bodies and impressive problem-solving skills. But did you know there are over 300 types of octopus species?

  6. Octopus: Facts about the 8-armed geniuses of the sea | Live ...

    Feb 12, 2025 · Octopuses are famous for their bizarre bodies, quick thinking and mischievous personalities. There are more than 300 species of octopus that scientists know about, and …

  7. 28 Types of Octopus (With Pictures) – Identification Guide

    Apr 25, 2025 · With approximately 300 species, they are found in oceans worldwide, from shallow reefs to deep-sea trenches, they thrive in diverse habitats. Their ability to change color and …