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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

    Sep 21, 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 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 …

  4. Octopus - Types, Size, Anatomy, Habitat, Diet, Lifespan, & Life Cycle

    Sep 18, 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. Octopus Facts, Types, Lifespan, Classification, Habitat, Pictures

    Octopuses have a relatively short lifespan, with certain species living for just six months. On average most of them do not survive for more than one or two years. The Giant Pacific …

  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 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. Ten Wild Facts About Octopuses: They Have Three Hearts, Big …

    Mar 13, 2024 · Octopuses, those whip-smart, bizarre cephalopods, embody everything creepy and mysterious about the sea. Their soft, squishy bodies, lurking in the oceans’ dark reaches, …

  9. 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 …

  10. 37 Amazing Octopus Facts [2025] | FactRetriever.com

    Nov 30, 2019 · Masters of disguise, astonishingly clever, and adorable in their own right, octopus are amazing. Get up close & personal with our list of fun octopus facts