Arctic lamprey vs Green Sea Turtle

Lethenteron camtschaticum compared with Chelonia mydas

Key Differences

• Arctic lamprey is Near Threatened while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Arctic lamprey	Green Sea Turtle
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Petromyzonti (Petromyzonti)	Reptilia (động vật bò sát)
Order	Petromyzontiformes (Lamprey)	Testudines (Bộ Rùa)
Family	Petromyzontidae	Cheloniidae (Sea Turtles)
Genus	Lethenteron	Chelonia (Green Sea Turtles)
Species	Lethenteron camtschaticum	Chelonia mydas

Evolutionary Relationship

Arctic lamprey and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Arctic lamprey

NT — Near Threatened

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Arctic lamprey	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Arctic lamprey

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Arctic lamprey

The Arctic lamprey (Lethenteron camtschaticum) is a species in the genus Lethenteron. It is currently classified as Near Threatened on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

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.