Ecureuil gris vs Hudson s Thomaomys

Sciurus carolinensis compared with Thomasomys hudsoni

Key Differences

• Ecureuil gris is Not Evaluated while Hudson s Thomaomys is Vulnerable.

Taxonomic Classification

Rank	Ecureuil gris	Hudson s Thomaomys
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Sciuridae (Squirrels)	Cricetidae
Genus	Sciurus (Tree Squirrels)	Thomasomys
Species	Sciurus carolinensis	Thomasomys hudsoni

Evolutionary Relationship

Ecureuil gris and Hudson s Thomaomys share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Ecureuil gris

NE — Not Evaluated

Trend: Stable →

Hudson s Thomaomys

VU — Vulnerable

Physical Characteristics

Attribute	Ecureuil gris	Hudson s Thomaomys
Diet	Omnivore	—
Average Lifespan	6 years	—
Average Length	25 cm	—
Average Weight	500 g	—

Habitat & Geographic Range

Ecureuil gris

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).

Hudson s Thomaomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Ecureuil gris

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.