Table of Contents
Prologue xi
Part 1 Social Behavior 1
Primate Diversity 3
Barbary Macaques: Model Monkeys 4
Primate Social Systems 14
Social Organization 15
Mating Systems 17
Social Relationships 20
Chacma Baboons: Into the Wild 30
Baboon Camp 33
Long-Term Studies 37
Aggression 41
Guinea Baboons: Uncharted Territories 46
An Expedition to Senegal 47
Simenti 49
First Findings 52
The Evolution of Baboons 56
Challenges of the Third Kind 59
Part 2 Cognition 65
What Do Animals Think? 67
Trophy Hunters and Killjoys 68
The Social Brain 71
Physical Cognition 75
The Basics 75
Quantities 80
Space 84
Time 90
Social Intelligence 95
Do Animals Have Culture? 95
Forms of Social Learning 100
Gaze Following 105
Social Knowledge 108
Theory of Mind 117
Intentions 117
Seeing and Knowing 119
Belief 123
Metacognition 126
The Evolution of Intelligence 130
Part 3 Communication 133
What Is Communication? 135
Senders and Receivers 135
Information 136
Signals and Cues 138
The Function of Monkey Sounds 139
Communication in Conflicts 140
Mating Calls 143
Group Coordination 144
The Evolution of Language: Beginnings 148
Early Theories 148
A Pioneer 150
Elements of Linguistic Competence 152
Ape Language Projects 153
Language Training for Apes 153
Symbolic Languages 155
Natural Communication in Primates 160
Alarm Calls 161
Vocal Behavior 164
Dialects 166
Development of Reactions 175
Perception of Gradual Differences 176
Word Learning in a Domestic Dog 181
The Evolution of Language: State of the Art 188
Syntactic Abilities 188
Is There a Gene for Language? 192
Gestural Communication 193
Intentional Communication 197
Just for the Fun of It 202
The Evolution of Communication 204
Conclusion and Prospects 207
Acknowledgments 211
Notes 215
References 221
Index 239