Secretive and nocturnal, the Phillipine flying lemur spends the day in tree holes, or gripping a tree trunk or branch with its patagium extended over its body like a cloak. It has also been seen curled up in a ball among the palm fronds of a coconut plantation (2). It ventures out of its shelter at dusk, climbs a short distance up a tree and then glides off in search of food (3). It is capable of executing controlled glides of over 100 metres, with little loss in height (2) (3). While gliding, the Philippine flying lemur is vulnerable to fast-flying birds of prey, such as the majestic Philippine eagle (Pithecophaga jefferyi). However, gliding is by far their most efficient method of locomotion; on the ground they cannot stand erect and are virtually helpless, and in the trees they are skilful, but very slow, climbers and move in a series of lingering hops (2) (3).
The Philippine flying lemur feeds on the young, nutritious leaves from a wide range of trees. With its front foot, it pulls a branch towards itself, moving a bunch of leaves within reach (4). Its stomach is specially adapted for ingesting large quantities of leafy vegetation (2) (4), but it also eats buds, flowers and perhaps soft fruits, and obtains sufficient water from its food and by licking wet leaves (2).
Gestation in the Philippine flying lemur lasts for around 60 days, after which the female gives birth to one, rarely two, young (2) (3). They are born in an undeveloped state and carried on the mother, even as she glides, until they are weaned at six months. The patagium can be folded near the tail into a soft, warm ‘hammock’ in which the young can be carried (2). The Philippine flying lemur reaches adult size at two to three years of age (2).