Eurasian beaver vs river lamprey, lampern

Castor fiber compared with Lampetra fluviatilis

Taxonomic Classification

Rank	Eurasian beaver	river lamprey, lampern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Petromyzonti (Petromyzonti)
Order	Rodentia (Rodents)	Petromyzontiformes (lamprey)
Family	Castoridae (Beavers)	Petromyzontidae
Genus	Castor (Beavers)	Lampetra
Species	Castor fiber	Lampetra fluviatilis

Evolutionary Relationship

Eurasian beaver and river lamprey, lampern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Eurasian beaver

VU — Vulnerable

river lamprey, lampern

VU — Vulnerable

Physical Characteristics

Attribute	Eurasian beaver	river lamprey, lampern
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.

river lamprey, lampern

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United Kingdom. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden