Canadian beaver vs Northern Birch Mouse

Castor canadensis compared with Sicista betulina

Key Differences

• Canadian beaver is Not Evaluated while Northern Birch Mouse is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Northern Birch Mouse
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class same	Mammalia (स्तनधारी)	Mammalia (स्तनधारी)
Order same	Rodentia (कृंतक)	Rodentia (कृंतक)
Family	Castoridae (Beavers)	Dipodidae
Genus	Castor (Beavers)	Sicista
Species	Castor canadensis	Sicista betulina

Evolutionary Relationship

Canadian beaver and Northern Birch Mouse share a common ancestor at the Order level: Rodentia. (कृंतक)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Northern Birch Mouse

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Northern Birch Mouse
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).

Northern Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Denmark, Norway, Russia, Sweden, and Ukraine.

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 4 countries:

🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden 🇺🇦 Ukraine