Eurasian beaver vs Little Gray Firefly

Castor fiber compared with Photinus marginellus

Key Differences

• Eurasian beaver is Vulnerable while Little Gray Firefly is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Little Gray Firefly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Coleoptera (Beetles)
Family	Castoridae (Beavers)	Lampyridae
Genus	Castor (Beavers)	Photinus
Species	Castor fiber	Photinus marginellus

Evolutionary Relationship

Eurasian beaver and Little Gray Firefly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

Little Gray Firefly

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Little Gray Firefly
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.

Little Gray Firefly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in Canada.

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.