What If Trees Could Talk to Each Other? FIELD NOTE — FOREST ECOLOGY • MYCORRHIZAL NETWORKS • BIOLOGICAL SYSTEMS
What if
trees could
talk?
A forest looks silent. Beneath the ground, roots, fungi, water and chemistry are in constant motion. What if we learned to listen?
We usually look at a forest and see hundreds—or thousands—of individuals. One tree. Another tree. Another tree. But underground, the boundaries aren't always that simple.
Roots search through soil. Fungal hyphae spread through microscopic spaces. Water moves through living tissues. Chemical signals change in response to the environment. Beneath the stillness, a forest is full of activity.
The internet under our feet
The comparison is almost irresistible. Our internet connects computers through cables. A forest can contain fungal networks that connect plant roots. These are known as common mycorrhizal networks, or CMNs.
Mycorrhizal fungi live in close association with plant roots. The relationship can involve an exchange: plants provide carbon made through photosynthesis, while fungi can help plants acquire nutrients from soil. These associations are widespread among plants.
The fungal partner can extend far beyond the immediate surface of a root. Tiny filaments called hyphae explore the soil. Millions of microscopic threads can form an intricate below-ground structure. And a fungus can interact with more than one plant.
But can trees actually “talk”?
Here's where we need to slow down. You've probably heard the popular story: trees communicate through the “Wood Wide Web.” Some versions go further. Mother trees supposedly recognise their offspring. Trees supposedly send warnings about predators. Resources supposedly travel from older trees to younger ones exactly when they need them.
It sounds incredible. Maybe a little too incredible. Science has a problem with turning a complicated ecological system into a beautiful story.
Research does show that fungal networks can connect plants and that transfers of resources can occur under some conditions. But scientists have also pointed out that evidence for many of the strongest popular claims is inconsistent or insufficient. A 2023 analysis in Nature Ecology & Evolution warned that claims about widespread forest networks, transfers that improve seedling performance, and mature trees preferentially sending resources or defence signals to offspring have often been overstated.
Fungi can connect plant roots, and resource transfer can happen in some settings.
That forests act like a coordinated social internet, with purposeful messages and targeted support.
Yes, the networks are real.
But that doesn't make a forest an underground social internet.
And that distinction matters.
The network is real
Imagine removing the trees from a forest. What remains? Soil. Roots. Microorganisms. Fungal hyphae. Chemical gradients. Water. Nutrients. An enormous biological network that we normally cannot see.
Plant–fungus networks can have complex structures, with fungi interacting simultaneously with multiple plant hosts. Those interactions can be mutualistic, neutral or even antagonistic, depending on the partners and their environment.
Instead of asking “Do trees talk?”, ask: What information and resources can actually move through a living forest network?
A forest doesn't need an internet
Our technology works because we designed communication systems. A forest didn't. There is no central server, router, Wi-Fi tower or master control room. And yet plants continuously respond to changes around them.
They interact with fungi, respond to chemical signals, regulate physiological processes and exchange materials with microbial partners. Plant–fungus relationships involve sophisticated signalling mechanisms that help determine whether and how the symbiosis develops.
The forest isn't running software. The biology is the system.
Now imagine we could read it
This is where SHERMODZ asks a different question. What if we didn't try to make trees communicate? What if we built technology capable of listening to the communication that already exists?
Imagine placing extremely low-power sensors throughout a forest. Not cameras everywhere. Not microphones hanging from every branch. Instead: tiny soil sensors, root-zone chemical sensors, moisture sensors, temperature probes, fungal activity indicators, electrical measurements and environmental sensors.
Then connect the measurements through an AI system. The forest becomes something different—not a machine, but a living observatory.
A biological sensing network designed to monitor hidden interactions between plants, fungi and their environment. ROOTNET would not claim to translate a tree's “thoughts.” It would look for changes in a forest's biological state before those changes become visible above ground.
How ROOTNET might work
The forest as a sensor
This is the real idea behind ROOTNET. We normally build sensors to study forests. ROOTNET imagines something more ambitious: what if the forest itself becomes part of the sensing system?
A drought doesn't begin when leaves finally turn brown. A pathogen doesn't necessarily announce itself with dead branches. The chemistry of a system may change first. When soil moisture shifts, the organisms living in that soil begin responding.
If we could continuously observe those changes, we might detect ecological stress earlier—not because ROOTNET “understands trees,” but because it measures many physical and biological variables at once.
The machine that listens
Imagine opening the ROOTNET dashboard. Instead of seeing “FOREST: HEALTHY,” you see something more useful:
The system isn't saying, “The tree is dying.” It is saying, “Something has changed.” And that's exactly where science should begin.
The hard part
Biology is messy. A fungal signal can change because of temperature, rainfall, soil chemistry, another organism, seasonal variation—or the plant itself. One sensor cannot tell the whole story.
ROOTNET would need many measurements gathered over long periods. The system would need to learn what normal variation looks like before it could identify an anomaly. And even then, an anomaly isn't automatically a disease.
Machine learning could help, but only when combined with ecological knowledge. A black-box AI making unexplained predictions would be a terrible idea.
What might change with better observation?
The goal isn't to control nature. It is to understand it earlier.
A strange possibility
For centuries, humans have tried to make nature measurable. We built thermometers, barometers, seismometers, spectrometers, satellites and radio telescopes. We turned invisible phenomena into data.
But a forest isn't one phenomenon. It's thousands of interacting biological processes. And perhaps that's exactly why it is so interesting.
From forest to living network
ROOTNET represents a change in perspective. Instead of asking, “How can we put more machines into a forest?”, ask: “How can machines become sensitive enough to observe the systems that are already there?”
Technology doesn't replace the ecosystem. It becomes its observer.
The future
Imagine walking through a forest fifty years from now. There are no giant laboratories. No walls. No artificial control structures. Only trees.
Beneath the soil, tiny sensors quietly collect measurements. Rain falls. Roots respond. Fungi change. Soil chemistry shifts. The network records what happens, and an ecological model receives the data.
It doesn't say: “The forest is talking.”
It says: “The forest is changing.”
That difference may be the difference between mythology and science.
The real invention
ROOTNET isn't really about creating communication between trees. The network already exists in forms biology has been developing for millions of years. The invention is much simpler: the ability to observe it.
We built the internet because machines needed to communicate. Now imagine building a system that doesn't ask machines to communicate, but learns how to listen to life itself.
Perhaps the forest was never silent. Perhaps we were simply standing above the conversation—too far away to hear it.
SHERMODZ+ / Field note
- Observation
- Plant roots interact with complex microbial and fungal communities.
- Known science
- Mycorrhizal fungi can form networks connecting plant roots; plant–fungus interactions involve resource exchanges and signalling.
- Scientific caution
- Popular “Wood Wide Web” claims can go beyond what current evidence establishes.
- Concept
- ROOTNET
- Scientific direction
- Forest ecology + fungal networks + environmental sensing + AI
- Design shift
- From monitoring the forest → to listening to the forest
- Status
- Conceptual · Real biology + speculative engineering
Further reading
- Nature Ecology & Evolution — Common mycorrhizal networks and the evidence debate (2023).
- Nature Plants — Mycoheterotrophy and common mycorrhizal networks.
- Nature Communications — Mechanisms underlying plant–fungus interactions.
- Nature Communications — Plant–fungus network structure.
ROOTNET is a conceptual sensing proposal. Dashboard values and predicted capabilities shown here are illustrative, not measured field results.
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