Canadian beaver vs Green Sea Turtle

Castor canadensis compared with Chelonia mydas

Key Differences

• Canadian beaver is Not Evaluated while Green Sea Turtle is Endangered.
• Green Sea Turtle is 8.0x heavier than Canadian beaver.
• Green Sea Turtle lives longer (80 years vs 15 years).

Taxonomic Classification

Rank	Canadian beaver	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Reptilia (Reptiles)
Order	Rodentia (Rodents)	Testudines (Turtles & Tortoises)
Family	Castoridae (Beavers)	Cheloniidae (Sea Turtles)
Genus	Castor (Beavers)	Chelonia (Green Sea Turtles)
Species	Castor canadensis	Chelonia mydas

Evolutionary Relationship

Canadian beaver and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Canadian beaver	Green Sea Turtle
Diet	Herbivore	Herbivore
Average Lifespan	15 years	80 years
Average Length	1.0 m	1.2 m
Average Weight	25.0 kg	200.0 kg

Habitat & Geographic Range

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

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.

Canadian beaver

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.

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.