Species · GBIF taxon 2289485
Giant Pacific Octopus
Enteroctopus dofleiniAlso known as North Pacific Giant Octopus
Giant Pacific octopuses are masters of disguise, utilizing specialized pigment cells in their skin to instantly match the color and texture of surrounding reefs. These solitary giants spend their days tucked inside rocky dens, venturing out under the cover of darkness to hunt crabs, lobsters, and fish with their powerful arms. After a single, intense mating cycle, females dedicate their final months to guarding and grooming their eggs, eventually dying of starvation once the young hatch.
IntelligentMarineCamouflage
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & prey
- Dungeness crabs
- Clams
- Rockfish
Predators
- Harbor seals
- Sea otters
- Sperm whales
ThreatsClimate change, ocean acidification, and localized overfishing
HabitatsCold temperate coastal waters, rocky reefs, and kelp forests
Life span3 to 5 years
Size / weightNot available
Classification
- FamilyEnteroctopodidae
- SpeciesEnteroctopus dofleini
N. Pacific
Marine distribution — the ocean basins and seas where the species occurs.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Possesses a sharp beak and mildly toxic saliva; avoid handling or cornering wild individuals.
- Why it is dangerous
- Equipped with a sharp chitinous beak and powerful suction cups that can cause painful bites and skin tears.
- How to recognize a risky encounter
- Look for a massive reddish-brown body with eight long arms covered in suckers, often hiding in deep rocky crevices.
- What to do
- Never attempt to pull an octopus from its den or handle it, as they will bite defensively if they feel trapped.
Responsible observation
- Look for Middens: Search rocky crevices for piles of discarded crab and clam shells, which indicate an active octopus den.
- Keep Your Distance: Observe swimming individuals without blocking their path or trying to touch their sensitive arms.
- Use Red Light: Use a red-filtered light during night dives to observe natural behaviors without startling them.
Close Relative Original uploader was Taollan82 at en.wikipedia / CC BY-SA 3.0 · cc-by-sa
Close Relative Jeremyse at en.wikipedia / Public domain · cc0
Deep-Sea Relative
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