The Southern flying squirrel (Glaucomys volans) ranges from North America to Central America and primarily inhabits deciduous and mixed forests. Its head‑and‑body length is 20–28.5 cm, the tail is about 10 cm, and it weighs approximately 38–90 g. Nocturnal, it spends the day in tree cavities or nests, may huddle in groups for warmth, and uses a patagium to glide between trees. Its diet includes acorns, seeds, and fruits, as well as insects, fungi, and occasionally bird eggs and carrion. Breeding occurs in spring and early summer; gestation is about 40 days, and females commonly produce 2–5 young. Populations are stable, and the IUCN lists the species as Least Concern.