Canadian beaver vs King Spiderhead

Castor canadensis compared with Serruria williamsii

Key Differences

• Canadian beaver is Not Evaluated while King Spiderhead is Endangered.

Taxonomic Classification

Rank	Canadian beaver	King Spiderhead
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Proteales (Proteales)
Family	Castoridae (Beavers)	Proteaceae
Genus	Castor (Beavers)	Serruria
Species	Castor canadensis	Serruria williamsii

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

King Spiderhead

EN — Endangered

Physical Characteristics

Attribute	Canadian beaver	King Spiderhead
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).

King Spiderhead

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.