Canadian beaver vs Johnstone's Robber Frog

Castor canadensis compared with Eleutherodactylus johnstonei

Key Differences

Canadian beaver is Not Evaluated while Johnstone's Robber Frog is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Johnstone's Robber Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Castoridae (Beavers)	Eleutherodactylidae
Genus	Castor (Beavers)	Eleutherodactylus
Species	Castor canadensis	Eleutherodactylus johnstonei

Evolutionary Relationship

Canadian beaver and Johnstone's Robber Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Johnstone's Robber Frog

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Johnstone's Robber Frog
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).

Johnstone's Robber Frog

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Neotropic biogeographic realm.

Range

Found across North America (9 countries) and South America (Colombia, Guyana, Venezuela).

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.