Ardilla Gris Oriental vs Eurasian beaver

Sciurus carolinensis compared with Castor fiber

Key Differences

• Ardilla Gris Oriental is Not Evaluated while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Ardilla Gris Oriental	Eurasian beaver
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	Sciuridae (Squirrels)	Castoridae (Beavers)
Genus	Sciurus (Tree Squirrels)	Castor (Beavers)
Species	Sciurus carolinensis	Castor fiber

Evolutionary Relationship

Ardilla Gris Oriental and Eurasian beaver share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Ardilla Gris Oriental

NE — Not Evaluated

Trend: Stable →

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Ardilla Gris Oriental	Eurasian beaver
Diet	Omnivore	—
Average Lifespan	6 years	—
Average Length	25 cm	—
Average Weight	500 g	—

Habitat & Geographic Range

Ardilla Gris Oriental

Habitat

Typically found in a wide range of habitat types.

Range

Widely distributed across Africa (South Africa), Asia (Indonesia), Europe (10 countries), and North America (Mexico, 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.

Ardilla Gris Oriental

Native to eastern North America but successfully introduced to Europe and other regions, the eastern gray squirrel is a medium-sized arboreal rodent weighing up to 600 g. Highly adaptable, thriving in forests, parks, and urban gardens, gray squirrels cache thousands of nuts and seeds each autumn, inadvertently planting trees through forgotten caches. In Britain, they have largely displaced the native red squirrel by outcompeting them for food.

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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden