20. Aspen Trees
Aspen trees are famous for their massive clonal colonies, where each tree is connected through a shared underground root system.
This network allows aspens to transmit stress signals—such as drought warnings or pest alerts—rapidly throughout the colony.
As a result, the entire group can mount a coordinated defense response to environmental threats.
This remarkable connectivity demonstrates how plant communication strengthens resilience, not just for individual trees, but for entire forests.
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