Atlantic oval squid vs common bottlenose dolphin

Sepioteuthis sepioidea compared with Tursiops truncatus

Taxonomic Classification

Rank	Atlantic oval squid	common bottlenose dolphin
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum	Mollusca (động vật thân mềm)	Chordata (động vật có dây sống)
Class	Cephalopoda (động vật chân đầu)	Mammalia (lớp Thú)
Order	Myopsida (Myopsida)	Cetacea (Whales & Dolphins)
Family	Loliginidae	Delphinidae (Oceanic Dolphins)
Genus	Sepioteuthis	Tursiops (Bottlenose Dolphins)
Species	Sepioteuthis sepioidea	Tursiops truncatus

Evolutionary Relationship

Atlantic oval squid and common bottlenose dolphin share a common ancestor at the Kingdom level: Animalia. (động vật)

Conservation Status

Atlantic oval squid

LC — Least Concern

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Atlantic oval squid	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Atlantic oval squid

common bottlenose dolphin

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 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Atlantic oval squid

The Atlantic oval squid (Sepioteuthis sepioidea) is a species in the genus Sepioteuthis. It is currently classified as Least Concern on the IUCN Red List.

common bottlenose dolphin

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.