Canadian beaver vs Flat Wrack

Castor canadensis compared with Fucus spiralis

Key Differences

• Canadian beaver is Not Evaluated while Flat Wrack is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Flat Wrack
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Phaeophyceae (Phaeophyceae)
Order	Rodentia (Rodents)	Fucales (Fucales)
Family	Castoridae (Beavers)	Fucaceae
Genus	Castor (Beavers)	Fucus
Species	Castor canadensis	Fucus spiralis

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Flat Wrack

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Flat Wrack
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).

Flat Wrack

Habitat

Found across multiple habitat types including temperate coniferous forests, montane grasslands and shrublands, and Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Found across Africa (Morocco) and Europe (9 countries).

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 7 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇬🇧 United Kingdom