Green Sea Turtle vs Red-billed Leiothrix

Chelonia mydas compared with Leiothrix lutea

Key Differences

• Green Sea Turtle is Endangered while Red-billed Leiothrix is Least Concern.

Taxonomic Classification

Rank	Green Sea Turtle	Red-billed Leiothrix
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Reptilia (Reptil)	Aves (burung)
Order	Testudines (Kura-kura)	Passeriformes (burung pengicau)
Family	Cheloniidae (Sea Turtles)	Leiothrichidae
Genus	Chelonia (Green Sea Turtles)	Leiothrix
Species	Chelonia mydas	Leiothrix lutea

Evolutionary Relationship

Green Sea Turtle and Red-billed Leiothrix share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Red-billed Leiothrix

LC — Least Concern

Physical Characteristics

Attribute	Green Sea Turtle	Red-billed Leiothrix
Diet	Herbivore	—
Average Lifespan	80 years	—
Average Length	1.2 m	—
Average Weight	200.0 kg	—

Habitat & Geographic Range

Green 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 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Red-billed Leiothrix

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Widely distributed across Africa (Togo), Asia (Japan, Taiwan, United Arab Emirates), Europe (8 countries), and North America (United States).

Green Sea Turtle

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.

Red-billed Leiothrix

A striking babbler-like bird of South and Southeast Asian forests, red-billed leiothrixes have brilliant orange-red bills, olive-green upper parts, and vivid yellow-orange throat and breast with red and yellow wing patches. Native to the Himalayas and southern China, they have been introduced to Hawaii, Europe, and Japan from the cage bird trade. Highly social, living in noisy flocks of 6–30 birds in undergrowth and forest edge. Listed as Least Concern globally despite introduced range concerns.