Flying squirrels are arboreal and found in a variety of forested or wooded areas including northern boreal forest, temperate deciduous forest, and tropical rainforest. Some species also occur within plantations and parkland. Two

A red giant flying squirrel (Petaurista petaurista) about to leap off a branch. (Photo by Chicago Zoological Park/Tom McHugh/Photo Researchers, Inc. Reproduced by permission.)

species, the woolly flying squirrel (Eupetaurus cinereus) and complex-toothed flying squirrel (Trogopterus xanthipes), live at high altitudes on rocky cliffs and outcrops. All species are nocturnal and many very seldom come down to the ground. They nest in a variety of tree holes, crevices or nests that they either construct themselves or occupy built by other species.

rous; some specializing on the feeding of young shoots and fruits. The temperate species tend to feed largely upon tree seeds, some fruits and fungi, and animal matter. Smaller tropical species tend to be much more carnivorous, feeding upon insects, spiders, and even small vertebrates. The montane woolly flying squirrel feeds upon mosses and lichens on rocks and conifer needles.

They are known to glide large distances to particular trees in order to feed on seasonal fruits or tender growing leaves. Some species show considerable seasonal variation within their diet, exploiting food resources as they become available.

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