Colugos (/kəˈluːɡoʊ/[2][3]), flying lemurs, or cobegos (/kəˈbiːɡoʊ/[4]), are arboreal gliding euarchontogliran mammals that are native to Southeast Asia.

These two species make up the entire family Cynocephalidae (/ˌsaɪnoʊˌsɛfəˈlaɪdi, -ˌkɛ-/)[5] and order Dermoptera[1][6] (from Ancient Greek δέρμα - dérma, "skin" and πτερόν - pterón, "wing").

[8] They have long, slender front and rear limbs, a medium-length tail, and a relatively light build.

[14] Colugos are shy, nocturnal, solitary animals found in the tropical forests of Southeast Asia.

They have well-developed stomachs and long intestines capable of extracting nutrients from leaves and other fibrous material.

The mother colugo curls her tail and folds her patagium into a warm, secure, quasipouch to protect and transport her young.

[6] It is estimated the ancestors of the colugos split from other mammals about 80 million years ago, leading to the present day forms that consist of 7 to 14 extant species.

[21] At present, the fossil record of definitive dermopterans is limited to two species of the Eocene and Oligocene cynocephalid genus Dermotherium.

[23][24] Scandentia (treeshrews) Lagomorpha (rabbits, hares, pikas) Rodentia (rodents) Dermoptera (colugos) †Plesiadapiformes Primates