Birdbeak dogfish vs Canadian beaver

Deania calcea compared with Castor canadensis

Key Differences

• Birdbeak dogfish is Near Threatened while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Birdbeak dogfish	Canadian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Rodentia (Rodents)
Family	Centrophoridae	Castoridae (Beavers)
Genus	Deania	Castor (Beavers)
Species	Deania calcea	Castor canadensis

Evolutionary Relationship

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

Conservation Status

Birdbeak dogfish

NT — Near Threatened

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Birdbeak dogfish	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Birdbeak dogfish

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile, Norway, and Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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).

Birdbeak dogfish

The Birdbeak dogfish (Deania calcea) is a species in the genus Deania. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

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 2 countries:

🇨🇱 Chile 🇳🇴 Norway