Canadian beaver vs Lesser Short-tailed Rat

Castor canadensis compared with Brachyuromys betsileoensis

Key Differences

• Canadian beaver is Not Evaluated while Lesser Short-tailed Rat is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Lesser Short-tailed Rat
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mamalia)	Mammalia (mamalia)
Order same	Rodentia (hewan pengerat)	Rodentia (hewan pengerat)
Family	Castoridae (Beavers)	Nesomyidae
Genus	Castor (Beavers)	Brachyuromys
Species	Castor canadensis	Brachyuromys betsileoensis

Evolutionary Relationship

Canadian beaver and Lesser Short-tailed Rat share a common ancestor at the Order level: Rodentia. (hewan pengerat)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Lesser Short-tailed Rat

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Lesser Short-tailed Rat
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).

Lesser Short-tailed Rat

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.