Buff-bellied Fat-tailed Mouse Opossum vs Canadian beaver

Thylamys venustus compared with Castor canadensis

Key Differences

• Buff-bellied Fat-tailed Mouse Opossum is Data Deficient while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Buff-bellied Fat-tailed Mouse Opossum	Canadian beaver
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Didelphimorphia (Didelphimorphia)	Rodentia (Bộ Gặm nhấm)
Family	Didelphidae	Castoridae (Beavers)
Genus	Thylamys	Castor (Beavers)
Species	Thylamys venustus	Castor canadensis

Evolutionary Relationship

Buff-bellied Fat-tailed Mouse Opossum and Canadian beaver share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

Buff-bellied Fat-tailed Mouse Opossum

DD — Data Deficient

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Buff-bellied Fat-tailed Mouse Opossum	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Buff-bellied Fat-tailed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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).

Buff-bellied Fat-tailed Mouse Opossum

The Buff-Bellied Fat-Tailed Mouse Opossum (Thylamys venustus) is a species in the genus Thylamys. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.