Australian humpback dolphin vs Leatherback Sea Turtle

Sousa sahulensis compared with Dermochelys coriacea

Taxonomic Classification

Rank	Australian humpback dolphin	Leatherback Sea Turtle
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Reptilia (пресмыкающиеся)
Order	Cetacea (Whales & Dolphins)	Testudines (черепахи)
Family	Delphinidae (Oceanic Dolphins)	Cheloniidae (Sea Turtles)
Genus	Sousa	Chelonia (Green Sea Turtles)
Species	Sousa sahulensis	Dermochelys coriacea

Evolutionary Relationship

Australian humpback dolphin and Leatherback Sea Turtle share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Australian humpback dolphin

VU — Vulnerable

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Australian humpback dolphin	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

Australian humpback dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Australian humpback dolphin

The Australian humpback dolphin (Sousa sahulensis) is a species in the genus Sousa. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Leatherback Sea Turtle

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