Learning from Animal Builders: Architectural Mutualism for Climate Resilient Cities

Author: Jiangli Wang

October 29, 2025

Learning from Animal Builders: Architectural Mutualism for Climate Resilient Cities


In today’s world, cities face escalating threats from climate change, including heatwaves, floods, and rising CO2 emissions. Many of these threats are caused by rapid urbanization and unsustainable architectural practices that disrupt entire ecosystems. In fact, skyscrapers alone, such as the ones in Dubai that prioritize aesthetics over ecological function, can generate about 140 percent more greenhouse gases than shorter buildings of equivalent occupancy.


However, nature already holds the answers to these problems. Termites, beavers, and ants demonstrate how climate change resilient structures emerge through symbiotic relationships—an approach known as architectural mutualism—to transform cities into collective systems where ecological and human health reinforce one another.


To allow for growing cities and nature to coexist, the architecture field should encourage widespread adoption of cost-efficient animal-inspired designs that provide solutions to extreme heat, flooding, CO2 emissions, and even strengthen the social bonds between city residents and native wildlife.


Mutualistic Urban Ecosystems


Architectural mutualism is a novel approach that reconceptualizes buildings as living “organisms” in themselves, rather than unanimated structures.


Take Milan’s Vertical Forest as an example. In constructing a residential building, designers carefully selected plant species based on sunlight needs, growth patterns, and health benefits, ensuring biodiversity while limiting pests like mosquitoes. Its dark, bark-like stoneware facade highlights greenery, while white accents add contrast. More than a green wall, this three-dimensional ecosystem filters sunlight through dense vegetation, lowering surface temperatures by up to 30°C and indoor temperatures by 2-3°C.


By transforming the standard skyscraper into a multi-use ecosystem, this living system improves both the building's microclimate and the wider city. Satellite imaging shows its cooling impact rivals Milan's Parco Sempione, combating heat island effects as effectively as large parks. 


The towers also host over 1,600 birds and butterflies, creating a micro-ecosystem that counters biodiversity loss from urban expansion. The project exemplifies architectural mutualism, transforming buildings into living systems that benefit both human and non-human species. 


Beaver-Inspired Flood Defense  


Jakarta, Houston, and Bangkok face worsening floods that displace vulnerable communities, while traditional flood canals are proving increasingly inadequate.


Beavers manage floods through natural dam-building that slows water, reduces erosion, and disperses floodwater to recharge groundwater. In fact, when six dams were built by beavers upstream of the flood-prone village of East Budleigh, London, peak flood flows dropped sharply. Inspired by this, communities now use Beaver Dam Analogs (BDAs), a shorthand that refers to low-cost installations that emulate beaver designs, with units costing only US$67-673


The Bridge Creek Restoration Project in Oregon illustrates the impact of BDAs. Researchers installed over 130 units, expanding wetlands by 228 percent and side channels by 1,216 percent—far more than sections without them. The groundwater supply was also recharged, stabilizing summer water temperatures and making the surrounding area much cooler for both humans and animals.


Overall, BDAs are an effective tool to mitigate floods while enhancing biodiversity by reconnecting wetland, showing how architectural mutualism can turn flood infrastructure into multi-functional ecological design.


Ant-Inspired Solutions to Traffic Pollution


As a form of architecture, urban traffic systems suffer from static signals and uncoordinated flow, causing excessive CO2 emissions that lowers air quality. 


Ants solve similar challenges through cooperation. A scout that finds food will lay pheromone trails that signal to other ants where to go. Once the other ants follow these trails to the food source, they reinforce the path with even more pheromones. Unused trails fade as pheromones evaporate, guiding the colony toward the shortest, most efficient routes for distributing workers, brood, and food. 


This cooperative decision-making, known as ant algorithm, functions as spatial architecture—not of steel and concrete, but of information and movement. Just as physical buildings organize activity, these algorithms structure urban flow. 


In Kerman, Iran, a hybrid navigation algorithm combining two separate algorithms, called the A* algorithm and Ant Colony Optimization (ACO) algorithm, reduced commute times using multi-parameter routing for distance, traffic load, and risk. It also outperformed other systems in all tests, cutting the “cost function” by 47 percent

By mimicking ants' collective intelligence, the system made traffic networks more efficient, benefiting both commuters and ecosystems. Fewer vehicle emissions improved air quality, strengthening microhabitats for birds and pollinators. Thus, regulating traffic flow algorithmically creates a virtuous cycle: less congestion leads to healthier ecosystems, which increase urban resilience.


Termite Wisdom for Cooling 


Dubai, UAE and Phoenix in Arizona, USA face deadly heatwaves, where conventional air conditioning limits power grids and worsens urban heat islands. Dubai’s glass skyscrapers may look impressive but trap heat, demanding far more cooling energy than shaded buildings.


Termite-inspired passive cooling reduces energy demand and could transform cities facing extreme heat. Despite outside swings from freezing to sweltering, termite mounds stay stable through ventilation. Their porous walls and chimneys use wind pressure to create natural airflow without energy input. Hot air rises and escapes, drawing cooler air from below in continuous circulation. This stabilizes temperatures for both termites and their fungus gardens, a vital food source. 


Zimbabwe’s Eastgate Centre in Harare proves this works for humans too. Architect Pearce designed the building to exploit the region's natural 10-14°C daily swings with passive ventilation inspired by termite mounds. By day, the thermal mass absorbs heat while keeping temperatures comfortable. At night, warm air rises through chimneys, drawing in cooler air from below. This ingenious system uses only 10 percent of the energy consumed by conventional air-conditioned buildings while maintaining stable indoor climates. 


This project exemplifies architectural mutualism: humans save energy costs while honeybirds rest in cooler surroundings. Despite Harare’s seasonal variations, its climate still mirrors Dubai’s, proving termite-inspired cooling can work in multiple hot and dry regions where reducing mechanical cooling with less energy-intensive methods is critical.


Cities as Living Partners 


Animals teach us that resilience comes not from expensive technology but cooperative design. Termites reveal how to cool cities without fossil fuels; beavers demonstrate flood control; ants prove traffic can flow through adaptive cooperation. 

Furthermore, mutualistic architecture is an emerging practice that enhances community well-being while simultaneously supporting wildlife habitats, shifting how architects think about to build resilient cities. By weaving these ideas into communities—especially vulnerable ones—we can build cities where people and animals coexist. Tomorrow’s cities will not just be ‘smart’—they’ll be vibrant and alive.