Broadback cuttlefish vs common bottlenose dolphin

Sepia savignyi compared with Tursiops truncatus

Key Differences

• Broadback cuttlefish is Data Deficient while common bottlenose dolphin is Least Concern.

Taxonomic Classification

Rank	Broadback cuttlefish	common bottlenose dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Mammalia (Mammals)
Order	Sepiida (Sepiida)	Cetacea (Whales & Dolphins)
Family	Sepiidae	Delphinidae (Oceanic Dolphins)
Genus	Sepia	Tursiops (Bottlenose Dolphins)
Species	Sepia savignyi	Tursiops truncatus

Evolutionary Relationship

Broadback cuttlefish and common bottlenose dolphin share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Broadback cuttlefish

DD — Data Deficient

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Broadback cuttlefish	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Broadback cuttlefish

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).

Broadback cuttlefish

The Broadback cuttlefish (Sepia savignyi) is a species in the genus Sepia. It is currently classified as Data Deficient 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.