butcher oldfield mouse vs Eurasian beaver

Thomasomys laniger compared with Castor fiber

Key Differences

• butcher oldfield mouse is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	butcher 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 laniger	Castor fiber

Evolutionary Relationship

butcher oldfield mouse and Eurasian beaver share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

butcher oldfield mouse

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	butcher oldfield mouse	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

butcher oldfield mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

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.

butcher oldfield mouse

The Butcher oldfield mouse (Thomasomys laniger) is a species in the genus Thomasomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.