books.google.co.uk - Old World monkeys (Cercopithecoidea) are the most successful and diverse group of living nonhuman primates in terms of the number of species, behavioral repertoires, and ecology. Among our closest living relatives, they have much to teach us about the processes of evolution and the principles of ecology....http://books.google.co.uk/books/about/Old_World_Monkeys.html?id=DIsC2Wn8h2wC&utm_source=gb-gplus-shareOld World Monkeys
