European otter vs Green Sea Turtle

Lutra lutra compared with Chelonia mydas

Key Differences

European otter is Vulnerable while Green Sea Turtle is Endangered.
European otter is carnivore while Green Sea Turtle is herbivore.
Green Sea Turtle is 20.0x heavier than European otter.
Green Sea Turtle lives longer (80 years vs 10 years).

Taxonomic Classification

Rank	European otter	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Reptilia (réptil)
Order	Carnivora (carnívoros)	Testudines (Tartaruga)
Family	Mustelidae (Weasels & Otters)	Cheloniidae (Sea Turtles)
Genus	Lutra (Otters)	Chelonia (Green Sea Turtles)
Species	Lutra lutra	Chelonia mydas

Evolutionary Relationship

European otter and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (cordados)

View Phylum: Chordata

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	European otter	Green Sea Turtle
Diet	Carnivore	Herbivore
Average Lifespan	10 years	80 years
Average Length	1.0 m	1.2 m
Average Weight	10.0 kg	200.0 kg

Habitat & Geographic Range

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.

European otter

Mustelídeo semiacuático de corpo esguio encontrado ao longo de rios limpos, riachos e costas da Europa e Ásia. A lontra-europeia (Lutra lutra) pode atingir 1,3 metros de comprimento e é uma caçadora de peixes altamente habilidosa, usando bigodes sensíveis para detectar os movimentos de suas presas. Necessitando de água não poluída com abundância de peixes, é uma espécie indicadora da saúde dos ecossistemas de água doce. Quase extinta na Europa Ocidental devido à caça e à poluição, as populações se recuperaram significativamente após melhorias na qualidade da água.