Canadian beaver vs Flat Periwinkle

Castor canadensis compared with Littorina obtusata

Key Differences

• Canadian beaver is Not Evaluated while Flat Periwinkle is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Flat Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Rodentia (Rodents)	Littorinimorpha (Littorinimorpha)
Family	Castoridae (Beavers)	Littorinidae
Genus	Castor (Beavers)	Littorina
Species	Castor canadensis	Littorina obtusata

Evolutionary Relationship

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

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Flat Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Flat Periwinkle
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).

Flat Periwinkle

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden