Canadian beaver vs Central Andes Oldfield Mouse

Castor canadensis compared with Thomasomys contradictus

Key Differences

• Canadian beaver is Not Evaluated while Central Andes Oldfield Mouse is Data Deficient.

Taxonomic Classification

Rank	Canadian beaver	Central Andes Oldfield Mouse
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order same	Rodentia (อันดับสัตว์ฟันแทะ)	Rodentia (อันดับสัตว์ฟันแทะ)
Family	Castoridae (Beavers)	Cricetidae
Genus	Castor (Beavers)	Thomasomys
Species	Castor canadensis	Thomasomys contradictus

Evolutionary Relationship

Canadian beaver and Central Andes Oldfield Mouse share a common ancestor at the Order level: Rodentia. (อันดับสัตว์ฟันแทะ)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Central Andes Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Canadian beaver	Central Andes Oldfield 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).

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.