Eurasian beaver vs Question Mark

Castor fiber compared with Polygonia interrogationis

Key Differences

• Eurasian beaver is Vulnerable while Question Mark is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Question Mark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Castoridae (Beavers)	Nymphalidae (Brush-footed Butterflies)
Genus	Castor (Beavers)	Polygonia
Species	Castor fiber	Polygonia interrogationis

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

Question Mark

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Question Mark
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.

Question Mark

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada 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.