Amerikanischer Biber vs Roughback Whipray

Castor canadensis compared with Fluvitrygon kittipongi

Key Differences

• Amerikanischer Biber is Not Evaluated while Roughback Whipray is Endangered.

Taxonomic Classification

Rank	Amerikanischer Biber	Roughback Whipray
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Elasmobranchii
Order	Rodentia (Nagetiere)	Myliobatiformes (Stechrochenartige)
Family	Castoridae (Beavers)	Dasyatidae
Genus	Castor (Beavers)	Fluvitrygon
Species	Castor canadensis	Fluvitrygon kittipongi

Evolutionary Relationship

Amerikanischer Biber and Roughback Whipray share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Amerikanischer Biber

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Roughback Whipray

EN — Endangered

Physical Characteristics

Attribute	Amerikanischer Biber	Roughback Whipray
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).

Roughback Whipray

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.