The red-tailed guenon is a species of monkey found in the forests of central and western Africa. It is known for its distinctive reddish-brown tail and striking facial markings, which include a white beard and dark patches around the eyes. These monkeys are primarily arboreal, spending most of their time in trees, and they are social animals that live in groups. Red-tailed guenons primarily feed on fruits, leaves, and insects. They play an important role in their ecosystem by helping to disperse seeds. Their populations are threatened by habitat loss due to deforestation and hunting, making conservation efforts essential for their survival.