Mammals

Sunda flying lemur

Galeopterus variegatus

Equipped with the most extensive gliding membrane of any mammal, the Sunda flying lemur silently slides from tree to tree in the nights of the Asian forests.

Characteristics

Scientific nameGaleopterus variegatus
Weight1–2 kg
SizeMedium: body about 35-42 cm
Energy2/5

Temperament

Nocturnal, arboreal, glider

Diet

Herbivore: young leaves, shoots, flowers and fruit

The master of gliding

The Sunda flying lemur is a mammal of unusual appearance, often improperly called a 'flying lemur': in fact it is not a lemur and is not able to fly. Its most extraordinary feature is the patagium, a broad membrane of skin connecting the neck, the four limbs and the tail, forming a kind of great sail. It is the most extensive gliding membrane of any mammal, and turns the animal into a genuine living glider. Its fur is soft and mottled, with camouflaged colours ranging from grey to reddish-brown, perfect for blending in with the bark.

Habitat and distribution

It lives in the forests of Southeast Asia, from southern Myanmar and Thailand to southern Vietnam, from Malaysia to Singapore and Indonesia. It is strictly tied to forest environments, on which it depends completely. It is an arboreal and nocturnal animal, which by day rests clinging to trunks or hidden among the foliage.

The glide

When it has to move between trees, the colugo launches itself into the void and spreads out the patagium, which stretches like a parachute and allows it to glide over long distances, even more than a hundred metres, losing very little height. It is an extremely efficient way of moving through the forest without coming down to the ground, where it is instead clumsy and vulnerable. Females carry their young clinging to the belly even during glides.

Feeding and conservation

It is herbivorous and feeds on soft plant parts, such as young leaves, shoots, flowers and fruit. It is classified as a species of least concern, with still widespread populations, but being totally dependent on the forest, deforestation represents its main threat at the local level.

Pros

  • The most extensive gliding membrane of any mammal
  • Glides over a hundred metres between trees
  • Perfect camouflaged fur
  • Still widespread populations

Cons

  • Totally dependent on the forest
  • Clumsy and vulnerable on the ground
  • Locally threatened by deforestation

FAQ

Does the colugo really fly?
No, despite the name 'flying lemur' it does not fly: it glides. It spreads out a broad membrane of skin, the patagium, which stretches like a parachute and allows it to slide from one tree to another over long distances, losing very little height.
Is it a lemur?
No, it is not a lemur, although it is often called a 'flying lemur'. It belongs to an order of its own, the colugos (Dermoptera), which includes only one other living species, the Philippine colugo. It is more closely related to primates than to other groups.
How far can it glide?
Thanks to the patagium, the most extensive gliding membrane of any mammal, the colugo can glide over long distances, even more than a hundred metres between trees, losing very little height. It is a very efficient way of moving through the forest.
Where does it live?
It lives in the forests of Southeast Asia, from southern Myanmar and Thailand to southern Vietnam, from Malaysia to Singapore and Indonesia. It is strictly tied to forest environments, on which it depends completely.

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