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Photo: CaracalShan · CC BY 4.0 (May be cropped or resized)
Simias concolor
Diet
Leaves, and to a lesser extent fruit and berries
Habitat
Rainforest canopy
Range
Endemic to small islands off the coast of Sumatra (Mentawai Islands)
The pig-tailed langur, or simakobu, is a large Old World monkey and the only species in its genus, endemic to several small islands off the coast of Sumatra. Its face is black, its fur black-brown and its tail relatively short. It is diurnal, feeding in the rainforest canopy on leaves and, to a lesser extent, fruit and berries (Wikipedia, general species account).
Little is known of its natural history, but it is heavily hunted and its populations have been declining rapidly (Wikipedia, general species account).