Amerikanischer Biber vs Japanischer Rochen

Castor canadensis compared with Mobula japanica

Taxonomic Classification

Rank	Amerikanischer Biber	Japanischer Rochen
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Elasmobranchii
Order	Rodentia (Nagetiere)	Myliobatiformes (Stechrochenartige)
Family	Castoridae (Beavers)	Myliobatidae
Genus	Castor (Beavers)	Mobula
Species	Castor canadensis	Mobula japanica

Evolutionary Relationship

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

Conservation Status

Amerikanischer Biber

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Japanischer Rochen

NE — Not Evaluated

Physical Characteristics

Attribute	Amerikanischer Biber	Japanischer Rochen
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).

Japanischer Rochen

Habitat

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

Range

Distributed across Chile and Taiwan.

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.

Shared Countries

Both species can be found in 1 countries:

🇨🇱 Chile