Aracá Uakari vs common Atlantic octopus

Cacajao ayresi compared with Octopus vulgaris

Key Differences

• Aracá Uakari is Least Concern while common Atlantic octopus is Not Evaluated.

Taxonomic Classification

Rank	Aracá Uakari	common Atlantic octopus
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Cephalopoda (Cephalopods)
Order	Primates (Primates)	Octopoda (Octopuses)
Family	Pitheciidae	Octopodidae (Common Octopuses)
Genus	Cacajao	Octopus (Octopuses)
Species	Cacajao ayresi	Octopus vulgaris

Evolutionary Relationship

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

Conservation Status

Aracá Uakari

LC — Least Concern

common Atlantic octopus

NE — Not Evaluated

Trend: Stable →

Physical Characteristics

Attribute	Aracá Uakari	common Atlantic octopus
Diet	—	Carnivore
Average Lifespan	—	2 years
Average Length	—	60 cm
Average Weight	—	5.0 kg

Habitat & Geographic Range

Aracá Uakari

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

common Atlantic octopus

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

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

Aracá Uakari

The Aracá Uakari (Cacajao ayresi) is a species in the genus Cacajao. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.