I Animals That Practise Camouflage 1
II Animal Musicians 18
III Animals at Play 32
IV Armour-Bearing and Mail-Clad Animals 46
V Miners and Excavators 61
VI Animal Mathematicians 88
VII The Language of Animals 99
VIII In Their Boudoirs, Hospitals and Churches 120
IX Self-Defence and Home-Government 130
X Architects, Engineers, and House-Builders 150
XI Food Conservers 170
XII Tourists and Sight-Seers 181
XIII Animal Scavengers and Criminals 199
XIV As the Allies of Man 210
XV The Future Life of Animals 234
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