Diverse Faces Keep Guenon Monkeys From Interbreeding

A group of Old World monkeys called guenons have undergone an incredible diversification in facial appearance to avoid interbreeding with closely related species.The research provides some of the best evidence for the role of visual signals as impediments to breeding across species to date.Read all about it  - and see the diversity of guenon facial markings for yourself - on Zoologic: Diverse Faces Keep Guenon Monkeys From Interbreeding.