十万个为什么·科学阅读30篇（3）

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白蚁没有蓝图，怎么建成高耸的土丘？

Termites build huge mounds that can be over six meters tall.
They use no plans — just simple rules and teamwork with thousands of workers.
Each termite follows scent trails and adds mud where others left it.
Air flows through tunnels to keep the nest cool and fresh.
The mound acts like a giant lung for the underground colony.
Temperature changes guide where termites place new soil layers.
Scientists study these mounds to design better natural ventilation systems.
No single termite knows the full plan — the structure emerges from many small actions.