Engineers of the desert: how termites build cities with perfect climate control

In the heart of the deserts and savannas of Africa, Australia, and South America, earthen giants rise defying harsh weather: termite mounds. These structures, which can exceed 7 meters in height (equivalent to a two-story building) and extend for kilometers underground, are not mere dirt mounds, but genuine underground cities designed with bioclimatic engineering that astounds human architects.

The most fascinating aspect of these constructions is their capacity for thermoregulation. While the outdoor temperature can fluctuate between 40°C during the day and near 0°C at night, the interior of a termite mound maintains a nearly constant temperature of 30°C and controlled humidity. The secret? A complex natural ventilation system. Termite mounds act like a gigantic lung, with central chimneys and a network of capillary tunnels. Hot, stale air rises through the central flues due to convection, while cooler, oxygen-rich air is 'sucked' in through small pores at the base, circulating and continually renewing itself.

This sophisticated architecture not only protects the millions of termites living inside, but also creates the ideal environment for cultivating the fungus they feed on. Construction is a collaborative and genetic process, where each termite contributes its 'brick' of soil, saliva, and feces, following patterns inherent to its species. It is a masterclass in sustainability and adaptive design that nature has perfected over millions of years.