Eurasian beaver vs Swallow Nycteoline

Castor fiber compared with Nycteola degenerana

Key Differences

• Eurasian beaver is Vulnerable while Swallow Nycteoline is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Swallow Nycteoline
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Chordata (حبليات)	Arthropoda (مفصليات الأرجل)
Class	Mammalia (ثدييات)	Insecta (حشرات)
Order	Rodentia (قوارض)	Lepidoptera (حرشفيات الأجنحة)
Family	Castoridae (Beavers)	Nolidae
Genus	Castor (Beavers)	Nycteola
Species	Castor fiber	Nycteola degenerana

Evolutionary Relationship

Eurasian beaver and Swallow Nycteoline share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

Eurasian beaver

VU — Vulnerable

Swallow Nycteoline

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Swallow Nycteoline
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.

Swallow Nycteoline

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, and Sweden.

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden