Broadback cuttlefish vs Leatherback Sea Turtle

Sepia savignyi compared with Dermochelys coriacea

Key Differences

• Broadback cuttlefish is Data Deficient while Leatherback Sea Turtle is Vulnerable.

Taxonomic Classification

Rank	Broadback cuttlefish	Leatherback Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Reptilia (Reptiles)
Order	Sepiida (Sepiida)	Testudines (Turtles & Tortoises)
Family	Sepiidae	Cheloniidae (Sea Turtles)
Genus	Sepia	Chelonia (Green Sea Turtles)
Species	Sepia savignyi	Dermochelys coriacea

Evolutionary Relationship

Broadback cuttlefish and Leatherback Sea Turtle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Broadback cuttlefish

DD — Data Deficient

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Broadback cuttlefish	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

Broadback cuttlefish

Leatherback Sea Turtle

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 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Leatherback Sea Turtle

The leatherback is the largest living turtle and the fourth-heaviest reptile. Unlike other turtles, it has a soft, leathery shell.