Atlantic Pygmy Octopus vs Common Octopus
How does the Atlantic Pygmy Octopus compare to the Common Octopus? They are both members of the Octopodidae family. Below we put their classification, habitat, diet, size, and conservation status side by side — and settle who would win in a fight.


Side-by-side comparison
- Scientific name
- Octopus joubini
- Octopus vulgaris
- Classification
- Invertebrate
- Invertebrate
- Family
- Octopodidae
- Octopodidae
- Habitat
- Shallow coastal waters, coral reefs, and seagrass beds
- Coastal ocean and rocky reefs
- Diet
- Carnivore
- Carnivore
- Conservation status
- Least Concern
- Least Concern
- Lifespan
- 8-10 months
- 1-2 years
- Weight
- 10-30 grams
- 3–10 kg
Atlantic Pygmy Octopus vs Common Octopus: who would win?

Atlantic Pygmy Octopus
10-30 grams

Common Octopus
3–10 kg
Common Octopus wins high confidence
Common Octopus is substantially heavier (3–10 kg vs 10-30 grams). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
Similarities
- Both are invertebrates.
- Both belong to the Octopodidae family.
- Both have a carnivore diet.
- Both are listed as Least Concern.
Differences
- Habitat: Shallow coastal waters, coral reefs, and seagrass beds vs Coastal ocean and rocky reefs.
- Weight: 10-30 grams vs 3–10 kg.
Atlantic Pygmy Octopus vs Common Octopus: FAQ
Who would win in a fight, a Atlantic Pygmy Octopus or a Common Octopus?
Common Octopus wins. Common Octopus is substantially heavier (3–10 kg vs 10-30 grams). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
What is the difference between a Atlantic Pygmy Octopus and a Common Octopus?
Atlantic Pygmy Octopus and Common Octopus differ in several ways — habitat: shallow coastal waters, coral reefs, and seagrass beds vs coastal ocean and rocky reefs. weight: 10-30 grams vs 3–10 kg.
Do Atlantic Pygmy Octopus and Common Octopus live in the same habitat?
No — Atlantic Pygmy Octopus lives in shallow coastal waters, coral reefs, and seagrass beds, while Common Octopus is found in coastal ocean and rocky reefs.
What do Atlantic Pygmy Octopus and Common Octopus eat?
Both Atlantic Pygmy Octopus and Common Octopus have a carnivore diet.
Which is more endangered, the Atlantic Pygmy Octopus or the Common Octopus?
Atlantic Pygmy Octopus is listed as Least Concern, while Common Octopus is listed as Least Concern.
How big are Atlantic Pygmy Octopus and Common Octopus?
Atlantic Pygmy Octopus weighs around 10-30 grams, while Common Octopus weighs around 3–10 kg.

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Atlantic Pygmy Octopus

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Common Octopus




