Eurasian beaver vs Irrawaddy Squirrel

Castor fiber compared with Callosciurus pygerythrus

Key Differences

• Eurasian beaver is Vulnerable while Irrawaddy Squirrel is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Irrawaddy Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Castoridae (Beavers)	Sciuridae (Squirrels)
Genus	Castor (Beavers)	Callosciurus
Species	Castor fiber	Callosciurus pygerythrus

Evolutionary Relationship

Eurasian beaver and Irrawaddy Squirrel share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Eurasian beaver

VU — Vulnerable

Irrawaddy Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Irrawaddy Squirrel
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.

Irrawaddy Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.