Canadian beaver vs Little Ground Squirrel

Castor canadensis compared with Spermophilus pygmaeus

Key Differences

• Canadian beaver is Not Evaluated while Little Ground Squirrel is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Little Ground Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Castoridae (Beavers)	Sciuridae (Squirrels)
Genus	Castor (Beavers)	Spermophilus
Species	Castor canadensis	Spermophilus pygmaeus

Evolutionary Relationship

Canadian beaver and Little Ground Squirrel share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Little Ground Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Little Ground Squirrel
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).

Little Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Russia 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 2 countries:

🇷🇺 Russia 🇺🇦 Ukraine