Langurs are a type of primate belonging to the family Cercopithecidae. They are primarily found in the forests and grasslands of Asia, particularly in countries like India, Nepal, and Sri Lanka. Langurs are known for their long limbs, slender bodies, and distinctive facial features, which often include a black face and a tuft of hair on their heads. They are herbivorous, mainly feeding on leaves, fruits, and flowers. These monkeys are social animals, living in groups called troops that can consist of several individuals. Langurs communicate through a variety of vocalizations, body language, and facial expressions. They play an important role in their ecosystems by helping to disperse seeds and maintain the health of their habitats.