arrow-head scale vs Canadian beaver

Unaspis yanonensis compared with Castor canadensis

Taxonomic Classification

Rank	arrow-head scale	Canadian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Hemiptera (Hemiptera)	Rodentia (Rodents)
Family	Diaspididae	Castoridae (Beavers)
Genus	Unaspis	Castor (Beavers)
Species	Unaspis yanonensis	Castor canadensis

Evolutionary Relationship

arrow-head scale and Canadian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow-head scale

NE — Not Evaluated

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	arrow-head scale	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

arrow-head scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Asia (Japan, Taiwan) and Europe (6 countries).

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).

arrow-head scale

The Arrow-head scale, Unaspis yanonensis, is a species. 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 🇫🇷 France 🇳🇱 Netherlands 🇬🇧 United Kingdom