The red-tailed monkey, also known as the red-tailed guenon, is a medium-sized primate found in the forests of central and western Africa. It is characterized by its distinctive reddish-brown tail and face, along with a grayish body. These monkeys are social animals, often seen in groups, and they primarily feed on fruits, leaves, and insects. Red-tailed monkeys are known for their playful behavior and vocalizations, which help them communicate within their troops. They have a varied diet that contributes to their role in seed dispersal, making them important for the health of their forest ecosystems.