Canadian beaver vs Stone Crayfish

Castor canadensis compared with Austropotamobius torrentium

Key Differences

• Canadian beaver is Not Evaluated while Stone Crayfish is Data Deficient.

Taxonomic Classification

Rank	Canadian beaver	Stone Crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Rodentia (Rodents)	Decapoda (Decapoda)
Family	Castoridae (Beavers)	Astacidae
Genus	Castor (Beavers)	Austropotamobius
Species	Castor canadensis	Austropotamobius torrentium

Evolutionary Relationship

Canadian beaver and Stone Crayfish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Stone Crayfish

DD — Data Deficient

Physical Characteristics

Attribute	Canadian beaver	Stone Crayfish
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 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).

Stone Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

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.