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Eastern Fox Squirrel
Sciuridae

Eastern Fox Squirrel

Sciurus niger Linnaeus, 1758

Sciurus niger (fox squirrel) is a large North American tree squirrel with specific habitat, behavior, and reproduction patterns.

Mexican Fox Squirrel
Sciuridae

Mexican Fox Squirrel

Sciurus nayaritensis J.A.Allen, 1890

The Mexican fox squirrel is a tree squirrel found in parts of Mexico and southeastern Arizona, US, rated Least Concern on the IUCN Red List.

Guianan Squirrel
Sciuridae

Guianan Squirrel

Sciurus aestuans Linnaeus, 1766

Sciurus aestuans, the Brazilian/Guianan squirrel, is a dark brown South American tree squirrel endemic to the region.

Abert's Squirrel
Sciuridae

Abert's Squirrel

Sciurus aberti Woodhouse, 1853

Sciurus aberti (Abert's squirrel) is a diurnal pine-associated squirrel species native to western North America with distinctive long ear tufts.

Western Gray Squirrel
Sciuridae

Western Gray Squirrel

Sciurus griseus Ord, 1818

Sciurus griseus, the western gray squirrel, is the largest native tree squirrel of the Pacific Northwest, currently threatened in parts of its range.

Central American Dwarf Squirrel
Sciuridae

Central American Dwarf Squirrel

Microsciurus alfari (J.A.Allen, 1895)

Microsciurus alfari, or Central American dwarf squirrel, is a Central and South American rainforest-dwelling squirrel species.

Western Dwarf Squirrel
Sciuridae

Western Dwarf Squirrel

Microsciurus mimulus (Thomas, 1898)

Microsciurus mimulus, the western dwarf squirrel, is a small tree squirrel found in Colombia, Ecuador, and Panama.

Douglas's Squirrel
Sciuridae

Douglas's Squirrel

Tamiasciurus douglasii (Bachman, 1839)

Tamiasciurus douglasii, the Douglas squirrel, is a small diurnal territorial squirrel native to Pacific coastal coniferous forests of North America.

American Red Squirrel
Sciuridae

American Red Squirrel

Tamiasciurus hudsonicus (Erxleben, 1777)

This is a scientific description of the North American American red squirrel (Tamiasciurus hudsonicus) covering its identification, distribution, and reproduction.

American Red Squirrel
Sciuridae

American Red Squirrel

Tamiasciurus hudsonicus fremonti (Audubon & Bachman, 1853)

American red squirrels are widely distributed North American tree squirrels with a detailed documented reproduction ecology.

Red Giant Flying Squirrel
Sciuridae

Red Giant Flying Squirrel

Petaurista petaurista (Pallas, 1766)

Petaurista petaurista, the red giant flying squirrel, is a large sciurid rodent found across South, East, and Southeast Asia.

Common Giant Flying Squirrel
Sciuridae

Common Giant Flying Squirrel

Petaurista philippensis (Elliot, 1839)

This is a description of the Indian giant flying squirrel, Petaurista philippensis, covering its traits, distribution, ecology, and reproduction.

Taiwan Red-and-white Giant Flying Squirrel
Sciuridae

Taiwan Red-and-white Giant Flying Squirrel

Petaurista lena Thomas, 1907

Red and white giant flying squirrel is a large nocturnal gliding Sciuridae rodent with the Taiwan population often split as separate P. lena species.

Thomas' Flying Squirrel
Sciuridae

Thomas' Flying Squirrel

Aeromys thomasi (Hose, 1900)

Thomas's flying squirrel (Aeromys thomasi) is a Sciuridae rodent found in Indonesia and Malaysia, one of two Aeromys species.

Siberian Flying Squirrel
Sciuridae

Siberian Flying Squirrel

Pteromys volans (Linnaeus, 1758)

Pteromys volans, the Siberian flying squirrel, is a gliding tree squirrel native to the forests of northern Eurasia.

Northern Flying Squirrel
Sciuridae

Northern Flying Squirrel

Glaucomys sabrinus (Shaw, 1801)

Glaucomys sabrinus, the northern flying squirrel, is a North American nocturnal arboreal rodent with several described subspecies.

Southern Flying Squirrel
Sciuridae

Southern Flying Squirrel

Glaucomys volans (Linnaeus, 1758)

Glaucomys volans, the southern flying squirrel, is a North American gliding squirrel that can carry typhus-causing bacteria.

Yellow-bellied Marmot
Sciuridae

Yellow-bellied Marmot

Marmota flaviventris (Audubon & Bachman, 1841)

Yellow-bellied marmot (Marmota flaviventris) is a large hibernating rodent native to open habitats of western North America.

Hoary Marmot
Sciuridae

Hoary Marmot

Marmota caligata (Eschscholtz, 1829)

Marmota caligata, the hoary marmot, is a large North American alpine ground squirrel with characteristic silver-gray upper back fur.

Vancouver Island Marmot
Sciuridae

Vancouver Island Marmot

Marmota vancouverensis Swarth, 1911

Marmota vancouverensis, the Vancouver Island marmot, is an endemic rare marmot that has recovered after severe population decline.

Olympic Marmot
Sciuridae

Olympic Marmot

Marmota olympus (Merriam, 1898)

Marmota olympus, the Olympic marmot, is the largest North American marmot endemic to Washington's Olympic Mountains.

Bobak Marmot
Sciuridae

Bobak Marmot

Marmota bobak (Müller, 1776)

Marmota bobak, the bobak steppe marmot, is a social hibernating marmot native to Eastern European and Central Asian steppes.

Tarbagan Marmot
Sciuridae

Tarbagan Marmot

Marmota sibirica (Radde, 1862)

Marmota sibirica, the tarbagan marmot, is a lowland-dwelling herbivorous marmot that acts as an important ecosystem engineer across central East Asia.

Alpine Marmot
Sciuridae

Alpine Marmot

Marmota marmota (Linnaeus, 1758)

The alpine marmot is a large squirrel native to European alpine regions, with introduced subpopulations across other mountain areas.

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