Eurasian beaver vs Lygaeid bug

Castor fiber compared with Nysius thymi

Key Differences

• Eurasian beaver is Vulnerable while Lygaeid bug is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Lygaeid bug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Hemiptera (Hemiptera)
Family	Castoridae (Beavers)	Lygaeidae
Genus	Castor (Beavers)	Nysius
Species	Castor fiber	Nysius thymi

Evolutionary Relationship

Eurasian beaver and Lygaeid bug share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

Lygaeid bug

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Lygaeid bug
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.

Lygaeid bug

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada, Denmark, Norway, Sweden, and United States.

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