Howler monkeys are large primates known for their distinctive loud calls, which can be heard over long distances. They are primarily found in the tropical forests of Central and South America. These monkeys have long tails that are often prehensile, allowing them to grasp branches as they move through the trees. These social animals live in groups called troops, which typically consist of several individuals. Howler monkeys are herbivores, mainly feeding on leaves, fruits, and flowers. Their unique vocalizations serve to communicate with other members of their troop and to establish territory against rival groups.