The Yucatan squirrel (Sciurus yucatanensis), originally named the Yucatan gray squirrel, also once named the Campeche squirrel, is a tree squirrel in the...

The red squirrel (Sciurus vulgaris), also called Eurasian red squirrel, is a species of tree squirrel in the genus Sciurus. It is an arboreal and primarily...

family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squirrels are indigenous to...

been known as the silver-gray squirrel, the California gray squirrel, the Oregon gray squirrel, the Columbian gray squirrel and the banner-tail. There are...

The fox squirrel (Sciurus niger), also known as the eastern fox squirrel or Bryant's fox squirrel, is the largest species of tree squirrel native to North...

The Douglas squirrel (Tamiasciurus douglasii) is a pine squirrel found in western North America, from the Pacific Northwest (including the northwestern...

eastern gray squirrel (Sciurus carolinensis), also known, particularly outside of North America, as simply the grey squirrel, is a tree squirrel in the genus...

variegatoides Eurasian red squirrel, Sciurus vulgaris Yucatan squirrel, Sciurus yucatanensis Subgenus Otosciurus Abert's squirrel, Sciurus aberti Subgenus...

the pine squirrels (the others are the Douglas squirrel, T. douglasii, and the southwestern red squirrel, T. fremonti). The American red squirrel is variously...

Douglas squirrel T. d. mearnsi — Mearns's squirrel Tamiasciurus fremonti — southwestern red squirrel T. f. grahamensis — Mount Graham red squirrel Tamiasciurus...

The tufted ground squirrel or groove-toothed squirrel (Rheithrosciurus macrotis) is a species of rodent in the family Sciuridae. It is the sole species...

Variegated squirrel, S. variegatoides Eurasian red squirrel, S. vulgaris Yucatan squirrel, S. yucatanensis Subgenus Otosciurus Abert's squirrel, S. aberti...

Abert's squirrel or the tassel-eared squirrel (Sciurus aberti) is a tree squirrel in the genus Sciurus native to the southern Rocky Mountains from the...

Europe's grey squirrels (Sciurus carolinensis) originated in North America, where they are known as eastern gray squirrels (to differentiate from western...

The variegated squirrel (Sciurus variegatoides) is a tree squirrel in the genus Sciurus found in Costa Rica, El Salvador, Guatemala, Honduras, southern...

The Calabrian black squirrel (Sciurus meridionalis) is a species of tree squirrel in the genus Sciurus, endemic to the forests of the regions of Calabria...

The Japanese squirrel (Sciurus lis) is a tree squirrel in the genus Sciurus endemic to Japan. It was described by Dutch zoologist Coenraad Jacob Temminck...

The Brazilian squirrel (Sciurus aestuans), or Guianan squirrel, is a species of tree squirrel endemic to South America. It is found in south-eastern Colombia...

nayaritensis LC Fox squirrel, Sciurus niger LC Peters's squirrel, Sciurus oculatus LC Variegated squirrel, Sciurus variegatoides LC Yucatan squirrel, Sciurus yucatanensis...

The Arizona gray squirrel (Sciurus arizonensis) is a tree squirrel, in the genus Sciurus, endemic to the canyons and valleys surrounded by deciduous and...

Junín red squirrel (Sciurus pyrrhinus) is a species of squirrel from Peru and Ecuador. The Junín red squirrel is a relatively large tree squirrel, having...

The red-tailed squirrel (Sciurus granatensis) is a species of tree squirrel distributed from southern Central America to northern South America. It is...

The Caucasian squirrel (Sciurus anomalus) or Persian squirrel, is a tree squirrel in the genus Sciurus found in temperate broadleaf and mixed forests...

and why the Yucatán black howler has such a restricted range is the ancestors of the Yucatán black howler and the Central American squirrel monkey migrated...

The southern Amazon red squirrel (Sciurus spadiceus), is a squirrel species from South America where it inhabits forests in much of north-western South...

Peters's squirrel (Sciurus oculatus) is a tree squirrel in the genus Sciurus endemic to Mexico. It was first described by the German naturalist and explorer...

The Andean squirrel (Sciurus pucheranii) is a tree squirrel endemic to Colombia where it inhabits montane rain forest and cloud forests of the Cordillera...

The Mexican gray squirrel (or red-bellied squirrel) (Sciurus aureogaster) is a tree squirrel in the genus Sciurus native to Guatemala and eastern and...

The Guayaquil squirrel (Sciurus stramineus) is a tree squirrel endemic to Ecuador and Peru. It is a robust squirrel with a head-and-body length of 18...

The northern Amazon red squirrel (Sciurus igniventris) is a squirrel species from South America. It occurs in Brazil, Colombia, Ecuador, Peru and Venezuela...