An arboreal, nocturnal primate, the Bemaraha woolly lemur spends the day sleeping in hollow trees or thick vegetation. Shortly after dusk, small family groups emerge to groom and feed upon leaves, buds, bark and fruits, all the while maintaining contact with distinctive whistles. This species spends most of the time high in the canopy, but will occasionally descend to the ground, jumping between stands of trees with an upright posture (5).
Unique amongst Madagascan primates, the woolly lemurs are monogamous. A single young may be born each dry season, between August and November, after a gestation period of four to five months (5) (8). Juveniles may stay with the parents for several years, helping to defend small territories of around two hectares (6). The woolly lemurs are also extremely vocal, and groups of these animals advertise themselves to other groups using a characteristic ‘ava-hee’ call, a behaviour leading to the scientific name Avahi (4).