Black-shouldered Opossum vs Canadian beaver

Caluromysiops irrupta compared with Castor canadensis

Key Differences

• Black-shouldered Opossum is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Black-shouldered 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	Caluromysiops	Castor (Beavers)
Species	Caluromysiops irrupta	Castor canadensis

Evolutionary Relationship

Black-shouldered Opossum and Canadian beaver share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

Black-shouldered Opossum

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Black-shouldered Opossum	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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).

Black-shouldered Opossum

The Black-shouldered Opossum (Caluromysiops irrupta) is a species in the genus Caluromysiops. It is currently classified as Least Concern 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.