Canadian beaver vs Mackerel shark

Castor canadensis compared with Lamna ditropis

Key Differences

• Canadian beaver is Not Evaluated while Mackerel shark is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Mackerel shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Rodents)	Lamniformes (Mackerel Sharks)
Family	Castoridae (Beavers)	Lamnidae (Mackerel Sharks)
Genus	Castor (Beavers)	Lamna
Species	Castor canadensis	Lamna ditropis

Evolutionary Relationship

Canadian beaver and Mackerel shark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Mackerel shark

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Mackerel shark
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).

Mackerel shark

Habitat

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

Range

Found in Taiwan.

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.