Trees Communicate Through Underground Fungal Networks

Beneath forests lies a vast web of mycorrhizal fungi connecting tree roots — sometimes called the "wood wide web." Trees use this network to share sugars, water, and chemical distress signals. Older "mother trees" have been observed directing more nutrients toward seedlings that are their offspring. The forest is not a collection of competing individuals but a cooperative network.

Source: Nature (1997) — Suzanne Simard et al.