arrow-finned squid vs common bottlenose dolphin

Illex oxygonius compared with Tursiops truncatus

Taxonomic Classification

Rank	arrow-finned squid	common bottlenose dolphin
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Mollusca (มอลลัสกา)	Chordata (สัตว์มีแกนสันหลัง)
Class	Cephalopoda (ชั้นเซฟาโลพอด)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Oegopsida (Oegopsida)	Cetacea (Whales & Dolphins)
Family	Ommastrephidae	Delphinidae (Oceanic Dolphins)
Genus	Illex	Tursiops (Bottlenose Dolphins)
Species	Illex oxygonius	Tursiops truncatus

Evolutionary Relationship

arrow-finned squid and common bottlenose dolphin share a common ancestor at the Kingdom level: Animalia. (สัตว์)

ดู: Kingdom: Animalia

Conservation Status

arrow-finned squid

LC — Least Concern

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	arrow-finned squid	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

arrow-finned 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).

arrow-finned squid

The Arrow-finned squid, Illex oxygonius, is a species. It is currently assessed 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.