Bark louse vs Canadian beaver

Elipsocus moebiusi compared with Castor canadensis

Taxonomic Classification

Rank	Bark louse	Canadian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Psocodea (Psocodea)	Rodentia (Rodents)
Family	Elipsocidae	Castoridae (Beavers)
Genus	Elipsocus	Castor (Beavers)
Species	Elipsocus moebiusi	Castor canadensis

Evolutionary Relationship

Bark louse and Canadian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bark louse

NE — Not Evaluated

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Bark louse	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Bark louse

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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).

Bark louse

The Bark louse (Elipsocus moebiusi) is a species in the genus Elipsocus. Typically found in virtually all terrestrial and freshwater habitats.

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.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States