There are about 50 species of flying squirrels ranging across most of North America down into Central America, and stretching from Southeast and Northern Asia into Siberia and Scandinavia.

Apart from these differences, and larger size, the northern flying squirrel resembles the southern. Adults are 250-298 mm (10-11.7 in) in total length, and weigh 75-125 g (2.6-4.4 oz). The range is ...

Flying squirrels thrive in forests with big trees and closed-canopy cover, large snags that provide nesting cavities, downed logs that foster the growth of the truffles they eat and understory cover ...