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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

    Dec 31, 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 - Types, Size, Anatomy, Habitat, Diet, Lifespan, & Life Cycle

    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 …

  4. Octopus | National Wildlife Federation

    Octopuses live in coastal marine waters and spend much of their time in dens—small holes and crevices in rocks and coral. They are generally solitary and territorial. Moray eels, fish, seals, …

  5. 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 …

  6. Octopus facts | Molluscs - BBC Earth

    Sep 22, 2024 · Octopuses are among the most unique, diverse, and intelligent marine invertebrates on Earth. Inhabiting environments from shallow shores to the dark, crushing …

  7. Octopus Animal Facts - Octopus Vulgaris - A-Z Animals

    May 27, 2024 · More than 300 species of octopus exist, and they are mostly found in tropical and temperate seas around the world. Octopuses are animals that have existed for many …

  8. 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 …

  9. Octopus Species | Types, Facts & Amazing Abilities - Ocean Action …

    Nov 20, 2024 · Discover the diverse world of octopus species. Learn about the 300+ types of octopuses, from the giant Pacific octopus to the tiny blue-ringed octopus.

  10. 20 Amazing Octopus Facts That Will Blow Your Mind

    Octopuses are some of the ocean’s most fascinating, weird, beautiful and misunderstood creatures. The common octopus, found in the Canary Islands, is particularly notable for its …