Canadian beaver vs Greater Pencil-tailed Tree Mouse

Castor canadensis compared with Chiropodomys major

Key Differences

• Canadian beaver is Not Evaluated while Greater Pencil-tailed Tree Mouse is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Greater Pencil-tailed Tree 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)	Muridae (Mice & Rats)
Genus	Castor (Beavers)	Chiropodomys
Species	Castor canadensis	Chiropodomys major

Evolutionary Relationship

Canadian beaver and Greater Pencil-tailed Tree Mouse share a common ancestor at the Order level: Rodentia. (कृंतक)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Greater Pencil-tailed Tree Mouse

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Greater Pencil-tailed Tree 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).

Greater Pencil-tailed Tree Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.