A termite mound breathes like a lung to keep its colony at a constant temperature

Fungus-farming termites build towering mounds riddled with internal chimneys and channels that use wind and daily temperature swings to drive a slow, constant exchange of air. The structure keeps the underground nest close to a steady temperature and fresh-air supply year-round without a single termite doing any active pumping.

— J. Scott Turner, The Extended Organism: The Physiology of Animal-Built Structures — Princeton University Press, 2000
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