Eastern spider beetle vs Eurasian beaver

Ptinus raptor compared with Castor fiber

Key Differences

• Eastern spider beetle is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Eastern spider beetle	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Coleoptera (Beetles)	Rodentia (Rodents)
Family	Ptinidae	Castoridae (Beavers)
Genus	Ptinus	Castor (Beavers)
Species	Ptinus raptor	Castor fiber

Evolutionary Relationship

Eastern spider beetle and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eastern spider beetle

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Eastern spider beetle	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eastern spider beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (4 countries) and North America (Canada, United States).

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.

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