Golden-bellied Mangabeys are only found in the Democratic Republic of Congo in tropical rainforests. They are known for their striking bright yellow and gold bellies which is easily distinguishable from their orange fur. They breed once per year, giving birth to one offspring that will not be fully independent until they are 4 to 5 years old. They are a nomadic, social species that travel in groups from 8 to 30 individuals. They have pouches in their cheeks which allow them to transport food.