Amerikanischer Biber vs Dwarf Slender Toad

Castor canadensis compared with Ansonia minuta

Key Differences

• Amerikanischer Biber is Not Evaluated while Dwarf Slender Toad is Least Concern.

Taxonomic Classification

Rank	Amerikanischer Biber	Dwarf Slender Toad
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Amphibia (Amphibien)
Order	Rodentia (Nagetiere)	Anura (Froschlurche)
Family	Castoridae (Beavers)	Bufonidae
Genus	Castor (Beavers)	Ansonia
Species	Castor canadensis	Ansonia minuta

Evolutionary Relationship

Amerikanischer Biber and Dwarf Slender Toad share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Amerikanischer Biber

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Dwarf Slender Toad

LC — Least Concern

Physical Characteristics

Attribute	Amerikanischer Biber	Dwarf Slender Toad
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Amerikanischer Biber

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).

Dwarf Slender Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Amerikanischer Biber

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.