Figure 3

Clay structures built by termites in field and laboratory experiments.

Field experiment: (a), ‘No load’ units had thin and brittle sheeting, mostly around wooden blocks and often incomplete, for ‘camouflage’; (b), ‘With Load’ units had a thick and solid wall, mostly around periphery of concrete paver. Laboratory experiment: (c), ‘No load’ units had little mudding, usually positioned beside the wooden block; (d), ‘With load’ units had entire paver covered by mud, usually with thicker walls (indicated by yellow dotted line).