The Long-Tailed Macaque (Macaca fascicularis) is a medium-sized primate found in Southeast Asia. They are easily recognized by their long, slender tails, which can be longer than their bodies. These monkeys typically inhabit forests, mangroves, and urban areas, often living in large social groups. Their diet mainly consists of fruits, leaves, and insects. Long-Tailed Macaques are known for their adaptability and intelligence. They often use tools, such as stones, to crack open nuts. These monkeys play a significant role in their ecosystems by helping to disperse seeds, contributing to forest regeneration. Their populations are affected by habitat loss and hunting.