The Lutung is a type of monkey found primarily in the forests of Southeast Asia. Known for its long limbs and distinctive black or gray fur, it belongs to the family Cercopithecidae. Lutung monkeys are often seen in groups, living in trees and feeding on leaves, fruits, and flowers. These monkeys are notable for their vocalizations, which include a variety of calls used for communication within their social groups. Lutung species, such as the Javan Lutung and Silvered Leaf Monkey, play an important role in their ecosystems by helping to disperse seeds as they move through the forest.