• Recognizable by the color of their fur, which gives them their name.
• Fur color changes with the seasons.
• Young langurs are almost pure white.

• Found in Assam, India, and neighboring Bhutan year-round.
• Inhabits an area bordered by the foothills of Bhutan (north), Manas river (east), Sankosh river (west), and Brahmaputra river (south).

• Occupies moist evergreen and tropical deciduous forests, along with some riverine areas and savannahs in Assam and Bhutan.
• Prefers living in the upper canopy of sub-tropical forests in the south and temperate forests in the north.

• IUCN: Endangered
• CITES: Appendix I
• Wildlife Protection Act, 1972: Schedule I

• Ripu Reserve Forest and Chakrashila WLS serve as vital habitats.
• Fragmented habitats face instability and threats.

PYQ:

[2012] Which one of the following groups of animals belongs to the category of endangered species?

(a) Great Indian Bustard, Musk Deer, Red Panda and Asiatic Wild Ass

(b) Kashmir Stag, Cheetal, Blue Bull and Great Indian Bustard

(c) Snow Leopard, Swamp Deer, Rhesus Monkey and Saras (Crane)

(d) Lion-tailed Macaque, Blue Bull, Hanuman Langur and Cheetal