Monkeys have long fascinated us because of their similarities to the human race. In this unit you will find out about some of the characteristics that make them so like us: their physiology, complex social interactions, large brains and intelligence. To get the most out of this unit you will need access to a copy of The Life of Mammals (2002) by David Attenborough, BBC Books (ISBN 0563534230), and The Life of Mammals (2002) on DVD, which contains the associated series of BBC TV programmes. This study unit is just one of many that can be found on LearningSpace, part of OpenLearn, a collection of open educational resources from The Open University. Published in ePub 2.0.1 format, some feature such as audio, video and linked PDF are not supported by all ePub readers.