The crested black macaque, also known as the black ape, is a primate species native to the islands of Indonesia, particularly Sulawesi. These monkeys are easily recognized by their distinctive black fur and prominent crest of hair on their heads. They typically live in social groups and are known for their expressive faces and vocalizations. Crested black macaques primarily inhabit tropical forests and are omnivorous, feeding on fruits, seeds, and small animals. They play a crucial role in their ecosystem by aiding in seed dispersal. Unfortunately, their populations are threatened by habitat loss and hunting, leading to their classification as endangered.