Doodle #0002 · Wednesday, May 6, 2026
the octopus
An octopus is a soft-bodied, eight-armed mollusk that lives in every ocean.
Sources
- Octopus circulatory system — Monterey Bay Aquarium Research Institute
- Cephalopod biology overview — Smithsonian Ocean
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Want more about the octopus? Visit the octopus subject page or browse all animals .