Guenons' distinctive features help prevent interbreeding, say researchers
                                
                                
                                    (Newser) -
                                    Guenon monkeys are renowned for their colorful, distinctive faces, which vary from species to species. The reason? It's all part of a strategy to help the monkeys identify their own species and avoid crossbreeding with others, new research finds. Guenon monkeys, sometimes known as cheek pouch monkeys, are a...