Canadian beaver vs Contrary Webcap

Castor canadensis compared with Cortinarius variicolor

Key Differences

Canadian beaver is Not Evaluated while Contrary Webcap is Vulnerable.

Taxonomic Classification

Rank	Canadian beaver	Contrary Webcap
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Basidiomycota (Club Fungi)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Agaricomycetes (Mushrooms)
Order	Rodentia (อันดับสัตว์ฟันแทะ)	Agaricales (Gilled Mushrooms)
Family	Castoridae (Beavers)	Cortinariaceae
Genus	Castor (Beavers)	Cortinarius
Species	Castor canadensis	Cortinarius variicolor

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Contrary Webcap

VU — Vulnerable

Physical Characteristics

Attribute	Canadian beaver	Contrary Webcap
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).

Contrary Webcap

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, and Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.