A squirrel is one of many small or medium-sized rodents in the family Sciuridae. In the English-speaking world, squirrel commonly
refers to members of this family's genera Sciurus and Tamiasciurus, which are tree squirrels with large bushy tails, indigenous
to Asia, the Americas and Europe. Similar genera are found in Africa. The Sciuridae family also include flying squirrels,
as well as ground squirrels such as the chipmunks, prairie dogs, and woodchucks.
The Eastern Gray Squirrel (Sciurus carolinensis), or the Grey Squirrel, depending on region, is a tree squirrel native to
the Eastern United States|eastern and midwestern United States and to the southerly portions of the eastern provinces of Canada.
The native range of the Eastern Gray Squirrel overlaps with that of the Fox Squirrel|fox squirrel (Sciurus niger), with which
it is sometimes confused, although the core of the fox squirrel's range is slightly more to the west.
The red squirrel or Eurasian red squirrel (Sciurus vulgaris) is a species of tree squirrel. A tree-dwelling omnivorous rodent,
the red squirrel is common throughout Eurasia. In Great Britain and Ireland, numbers have decreased drastically in recent
years, in part because of the introduction of the eastern grey squirrel (Sciurus carolinensis) from North America.
The groundhog (Marmota monax), also known as a woodchuck or whistle-pig, or in some areas as a land-beaver is a rodent of
the family Sciuridae, belonging to the group of large ground squirrels known as marmots. Other marmots, such as the yellow-bellied
and hoary marmots, live in rocky and mountainous areas which may cause diseases, but the woodchuck is a lowland creature.
It is widely distributed in North America and common in the northeastern and central United States.
Marmots are members of the genus Marmota, in the rodent family Sciuridae (squirrels). Marmots are generally large ground squirrels.
Those most often referred to as marmots tend to live in mountainous areas such as the Alps, northern Apennines, Carpathians,
Tatra, and Pyrenees in Europe, the Rockies, the Black Hills and the Sierra Nevada in the United States, Northern Canada, Deosai
plateau in Pakistan and Ladakh in India.