Canadian beaver vs New Guinean Quoll

Castor canadensis compared with Dasyurus albopunctatus

Key Differences

• Canadian beaver is Not Evaluated while New Guinean Quoll is Near Threatened.

Taxonomic Classification

Rank	Canadian beaver	New Guinean Quoll
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Dasyuromorphia (Dasyuromorphia)
Family	Castoridae (Beavers)	Dasyuridae
Genus	Castor (Beavers)	Dasyurus
Species	Castor canadensis	Dasyurus albopunctatus

Evolutionary Relationship

Canadian beaver and New Guinean Quoll share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

New Guinean Quoll

NT — Near Threatened

Physical Characteristics

Attribute	Canadian beaver	New Guinean Quoll
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

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).

New Guinean Quoll

Habitat

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.