Brown smooth hound vs Canadian beaver

Mustelus henlei compared with Castor canadensis

Key Differences

• Brown smooth hound is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Brown smooth hound	Canadian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Rodentia (Rodents)
Family	Triakidae	Castoridae (Beavers)
Genus	Mustelus	Castor (Beavers)
Species	Mustelus henlei	Castor canadensis

Evolutionary Relationship

Brown smooth hound and Canadian beaver share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown smooth hound

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Brown smooth hound	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Brown smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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).

Brown smooth hound

The Brown Smooth Hound (Mustelus henlei) is a species in the genus Mustelus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.