Eurasian beaver vs Least Tern

Castor fiber compared with Sternula antillarum

Key Differences

• Eurasian beaver is Vulnerable while Least Tern is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Least Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Charadriiformes (Charadriiformes)
Family	Castoridae (Beavers)	Laridae
Genus	Castor (Beavers)	Sternula
Species	Castor fiber	Sternula antillarum

Evolutionary Relationship

Eurasian beaver and Least Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Eurasian beaver

VU — Vulnerable

Least Tern

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Least Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Least Tern

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway