Aransas Dwarf Crawfish vs Canadian beaver

Cambarellus ninae compared with Castor canadensis

Key Differences

• Aransas Dwarf Crawfish is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Aransas Dwarf Crawfish	Canadian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (Mammals)
Order	Decapoda (Decapoda)	Rodentia (Rodents)
Family	Cambaridae	Castoridae (Beavers)
Genus	Cambarellus	Castor (Beavers)
Species	Cambarellus ninae	Castor canadensis

Evolutionary Relationship

Aransas Dwarf Crawfish and Canadian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Aransas Dwarf Crawfish

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Aransas Dwarf Crawfish	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Aransas Dwarf Crawfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.

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).

Aransas Dwarf Crawfish

The Aransas Dwarf Crawfish (Cambarellus ninae) is a species in the genus Cambarellus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

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 1 countries:

🇳🇴 Norway