Red and White Giant Flying Squirrel

Mammals > Sciuridae & Flying Squirrels

AT A GLANCE
Common Name: Red and White Giant Flying Squirrel
Scientific Name: Petaurista alborufus
Category: Mammals
Subcategory: Sciuridae & Flying Squirrels
Size: Head-and-body length: 14–23 in (35–58 cm); Tail length: 14–24 in (36–60 cm)
Weight: 2.6–4.5 lb (1.2–2.0 kg); one of the heaviest flying squirrels
Lifespan: 10–14 years in the wild; up to 17 years in captivity
Diet: Herbivore / Folivore (oak acorns, pine nuts, sweet tree buds, tender shoots, and wild figs)
Habitat: Dense montane subtropical broadleaf and mixed conifer forests and rocky limestone cliffs
Range: Central and southern China and high-altitude montane forests of Taiwan
Conservation Status: Least Concern (IUCN Red List); Locally pressured by timber fragmentation

Overview

The Red and White Giant Flying Squirrel (Petaurista alborufus) is one of the most magnificent and massive arboreal rodents on Earth. Clothed in a striking, high-contrast coat of fiery russet-orange mantle, snowy-white underbelly, and a creamy-white mask, this colossal glider haunts the mist-shrouded montane canopies of central China and Taiwan. Possessing an expansive furred patagium stretching from wrist to ankle, it transforms from a fluffy tree-dweller into an aerodynamic gliding marvel capable of traversing mountain ravines with effortless grace.

Biology and Physical Characteristics

Weighing over four pounds and exceeding three feet in total length including its bushy, rudder-like tail, Petaurista alborufus is engineered for long-distance aerial locomotion. Its gliding membrane (patagium) is supported by a specialized cartilaginous spur (styliform cartilage) projecting from each wrist, which flares outward to adjust wing camber and tension mid-flight. Large, spherical black eyes equipped with tapetum lucidum maximize nocturnal light-gathering on foggy mountain slopes, while curved claws provide a vice-like grip on mossy tree bark and vertical limestone rock faces.

Behavior and Ecology

Strictly nocturnal and predominantly solitary, the red and white giant flying squirrel spends daytime hours tucked inside deep tree cavities or secluded fissures along sheer limestone cliffs. At dusk, it emerges to forage across the emergent canopy, launching from high canopy limbs into breathtaking gliding trajectories that can span upwards of 300 to 400 feet (100–120 m). It steers through turbulent mountain updrafts by twisting its wrists and tail, flaring upward just before impact to land feet-first against tree trunks with minimal acoustic disturbance.

Conservation and Human Impact

While globally evaluated as Least Concern due to extensive protected ranges across Chinese national parks and Taiwanese mountain reserves, localized populations face threats from commercial timber harvesting, road construction that bisects canopy continuity, and occasional hunting for traditional crafts. Protecting contiguous old-growth montane broadleaf corridors ensures these spectacular nocturnal gliders maintain unrestricted aerial highways between feeding groves.

Interesting Factoid

The red and white giant flying squirrel can execute controlled mid-air bank turns of up to 90 degrees during flight by flexing its wrist styliform spurs and tilting its massive furry tail.

Last updated: October 2026