Andean White-eared Opossum vs Amerikanischer Biber

Didelphis pernigra compared with Castor canadensis

Key Differences

• Andean White-eared Opossum is Least Concern while Amerikanischer Biber is Not Evaluated.

Taxonomic Classification

Rank	Andean White-eared Opossum	Amerikanischer Biber
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Didelphimorphia (Beutelrattenartige)	Rodentia (Nagetiere)
Family	Didelphidae	Castoridae (Beavers)
Genus	Didelphis	Castor (Beavers)
Species	Didelphis pernigra	Castor canadensis

Evolutionary Relationship

Andean White-eared Opossum and Amerikanischer Biber share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Andean White-eared Opossum

LC — Least Concern

Amerikanischer Biber

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Andean White-eared Opossum	Amerikanischer Biber
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Andean White-eared Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Amerikanischer Biber

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).

Andean White-eared Opossum

The Andean White-eared Opossum (Didelphis pernigra) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Amerikanischer Biber

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.