common Atlantic octopus vs Epaulard

Octopus vulgaris compared with Orcinus orca

Key Differences

• common Atlantic octopus is Not Evaluated while Epaulard is Data Deficient.
• Epaulard is 1080.0x heavier than common Atlantic octopus.
• Epaulard lives longer (50 years vs 2 years).

Taxonomic Classification

Rank	common Atlantic octopus	Epaulard
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Mammalia (Mammals)
Order	Octopoda (Octopuses)	Cetacea (Whales & Dolphins)
Family	Octopodidae (Common Octopuses)	Delphinidae (Oceanic Dolphins)
Genus	Octopus (Octopuses)	Orcinus (Orcas)
Species	Octopus vulgaris	Orcinus orca

Evolutionary Relationship

common Atlantic octopus and Epaulard share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

common Atlantic octopus

NE — Not Evaluated

Trend: Stable →

Epaulard

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Physical Characteristics

Attribute	common Atlantic octopus	Epaulard
Diet	Carnivore	Carnivore
Average Lifespan	2 years	50 years
Average Length	60 cm	8.0 m
Average Weight	5.0 kg	5.4 t

Habitat & Geographic Range

common Atlantic octopus

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Distributed across Chile, Denmark, Norway, Portugal, and Sweden.

Epaulard

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

common Atlantic octopus

One of the most studied invertebrates in neuroscience and behavioral biology, common octopuses inhabit rocky reefs and seafloors in tropical and temperate coastal waters globally. Highly intelligent with distributed nervous systems — two-thirds of their 500 million neurons reside in their arms — they demonstrate tool use, problem-solving, and individual personalities. Masters of camouflage, they change skin color and texture in milliseconds. They have three hearts, blue copper-based blood, and extremely short lifespans of 1–2 years.

Epaulard

The largest member of the dolphin family, orcas reach up to 9 meters and 6 tonnes and are found in every ocean from Arctic to Antarctic. Apex predators living in matrilineal pods with distinct dialects, hunting strategies, and cultural traditions that differ between populations. Some populations specialize in fish, others in marine mammals. No natural predators; orcas sit at the top of every marine food chain they inhabit.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden