Castor canadien vs Desmarest’s Spiny Pocket Mouse

Castor canadensis compared with Heteromys desmarestianus

Key Differences

• Castor canadien is Not Evaluated while Desmarest’s Spiny Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Castor canadien	Desmarest’s Spiny Pocket Mouse
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Castoridae (Beavers)	Heteromyidae
Genus	Castor (Beavers)	Heteromys
Species	Castor canadensis	Heteromys desmarestianus

Evolutionary Relationship

Castor canadien and Desmarest’s Spiny Pocket Mouse share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Castor canadien

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Desmarest’s Spiny Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Castor canadien	Desmarest’s Spiny Pocket Mouse
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Castor canadien

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).

Desmarest’s Spiny Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Castor canadien

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.