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Soldier Termite, generic image of this isopteran Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books).

Cross section diagram showing cooling air pathways through the termite mound Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books).

Termite mound from near the equator Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books).