How Do Trees Communicate Underground?

Imagine your neighborhood has a secret internet made of fungi. This network connects the roots of trees so they can share food and send messages. When one tree gets sick, it warns its neighbors to prepare their defenses. Even big old trees help baby trees by sending them sugar through these tiny underground threads.

The ground is filled with mycorrhizal networks. These are like tiny ropes that tie tree roots together. They act as superhighways for water and minerals.

Trees use this web to trade resources. A healthy tree might send extra glucose to a shaded neighbor that needs help. If an insect attacks one tree, it sends chemical alarms through the network to tell others to raise their shields.

This system makes forests stronger and more resilient. The trees work as a community rather than competing alone for sunlight and soil.