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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 7, 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. Common octopus - Wikipedia

    The common octopus (Octopus vulgaris) is a mollusk belonging to the class Cephalopoda. Octopus vulgaris is one of the most studied of all octopus species, and also one of the most …

  4. Octopus - Wikiwand

    An octopus (pl.: octopuses or octopodes[a]) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ ɒkˈtɒpədə /, ok-TOP-ə-də[3]). The order consists of some 300 species and is …

  5. Octopus: Facts about the 8-armed geniuses of the sea - Live Science

    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 …

  6. 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 …

  7. Octopus facts | Molluscs | BBC Earth

    Sep 23, 2024 · Octopuses are among the most unique, diverse, and intelligent marine invertebrates on Earth. Inhabiting environments from shallow shores to the dark, crushing …

  8. Octopus - Simple English Wikipedia, the free encyclopedia

    There are about 300 octopod species, of which more than 100 are in the genus Octopus. Octopods make up over one-third of the total number of living cephalopods.

  9. Octopuses, facts and information | National Geographic

    There are around 300 species of octopus and they are found in every ocean. Most live on the seafloor, but some, like the paper nautilus, drift nearer to the surface. Octopuses mostly feed …

  10. 8 fascinating facts about octopuses—from their supersmarts to …

    Aug 22, 2025 · With their bulbous mantles, squirming arms, and clouds of ink, it’s no wonder that octopuses —from the kraken to Ursula in The Little Mermaid —have inspired folklore for …