Central Andes Oldfield Mouse vs Eurasian beaver

Thomasomys contradictus compared with Castor fiber

Key Differences

• Central Andes Oldfield Mouse is Data Deficient while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Eurasian beaver
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	Cricetidae	Castoridae (Beavers)
Genus	Thomasomys	Castor (Beavers)
Species	Thomasomys contradictus	Castor fiber

Evolutionary Relationship

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

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.