Green Sea Turtle vs Cisne-vulgar

Chelonia mydas compared with Cygnus olor

Key Differences

• Green Sea Turtle is Endangered while Cisne-vulgar is Near Threatened.
• Green Sea Turtle is 16.7x heavier than Cisne-vulgar.
• Green Sea Turtle lives longer (80 years vs 20 years).

Taxonomic Classification

Rank	Green Sea Turtle	Cisne-vulgar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Reptilia (réptil)	Aves (ave)
Order	Testudines (Tartaruga)	Anseriformes (Anseriformes)
Family	Cheloniidae (Sea Turtles)	Anatidae
Genus	Chelonia (Green Sea Turtles)	Cygnus
Species	Chelonia mydas	Cygnus olor

Evolutionary Relationship

Green Sea Turtle and Cisne-vulgar share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Cisne-vulgar

NT — Near Threatened

Population: ~600.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Green Sea Turtle	Cisne-vulgar
Diet	Herbivore	Herbivore
Average Lifespan	80 years	20 years
Average Length	1.2 m	1.5 m
Average Weight	200.0 kg	12.0 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.

Cisne-vulgar

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 8 distinct biome types.

Range

Widely distributed across Africa (South Africa), Asia (4 countries), Europe (24 countries), North America (Canada, Dominican Republic, United States), Oceania and the Pacific (New Zealand), and South America (Colombia, Peru). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Green Sea Turtle

A tartaruga-verde (Chelonia mydas) é uma das maiores tartarugas marinhas. Seu nome vem da cor verde da cartilagem e gordura, não do casco.

Cisne-vulgar

O cisne-mudo e o cisne mais comumente encontrado no mundo e uma das maiores aves voadoras, pesando ate 15 kg, habitando lagos, rios e baias costeiras na Europa e Asia, com populacoes introduzidas amplamente distribuidas na America do Norte e Australia. Apesar de seu nome, os cisnes-mudos produzem uma variedade de sons como assovios, grunhidos e assovios de asa. Os machos defendem territorialmente suas areas e sao capazes de ferir pessoas e afogar caes com poderosas batidas de asa.