Leatherback Sea Turtle vs Lesser Cachalot

Dermochelys coriacea compared with Kogia breviceps

Key Differences

• Leatherback Sea Turtle is Vulnerable while Lesser Cachalot is Data Deficient.

Taxonomic Classification

Rank	Leatherback Sea Turtle	Lesser Cachalot
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Reptilia (爬虫類)	Mammalia (哺乳類)
Order	Testudines (カメ)	Cetacea (Whales & Dolphins)
Family	Cheloniidae (Sea Turtles)	Kogiidae
Genus	Chelonia (Green Sea Turtles)	Kogia
Species	Dermochelys coriacea	Kogia breviceps

Evolutionary Relationship

Leatherback Sea Turtle and Lesser Cachalot share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Lesser Cachalot

DD — Data Deficient

Physical Characteristics

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

Habitat & Geographic Range

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.

Lesser Cachalot

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, Portugal, Sweden, and Taiwan.

Leatherback Sea Turtle

オサガメは現存する最大のカメであり、爬虫類の中で4番目に重い種です。他のカメとは異なり、硬い甲羅ではなく柔らかく革のような皮膚に覆われています。