Rundkopfdelphin vs Amerikanischer Biber

Grampus griseus compared with Castor canadensis

Key Differences

• Rundkopfdelphin is Least Concern while Amerikanischer Biber is Not Evaluated.

Taxonomic Classification

Rank	Rundkopfdelphin	Amerikanischer Biber
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Cetacea (Whales & Dolphins)	Rodentia (Nagetiere)
Family	Delphinidae (Oceanic Dolphins)	Castoridae (Beavers)
Genus	Grampus	Castor (Beavers)
Species	Grampus griseus	Castor canadensis

Evolutionary Relationship

Rundkopfdelphin and Amerikanischer Biber share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Rundkopfdelphin

LC — Least Concern

Amerikanischer Biber

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Rundkopfdelphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

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).

Rundkopfdelphin

The Calderon Gris (Grampus griseus) is a species in the genus Grampus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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 3 countries:

🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden