There’s a second—if you’ve ever sat long enough in a wooded area, beside a river, or watched a murmuration of starlings wheel throughout an icy sky—whilst something shifts. The noise in your head quiets. And you get this faint, uncomfortable feeling that something is going on around you, which you’re now not quite equipped to understand.
That feeling isn’t always creativity. It’s instinct recognizing something real.
Nature communicates constantly. Not in metaphor, not in the poetic sense people reach for when they want to sound profound—but literally, chemically, electrically, and seismically. Trees ship warnings to each other. Rivers convey geological reminiscence of their bends and sediment layers. Animals examine atmospheric facts with sensory systems so particular they are able to experience a storm 3 days earlier than the clouds arrive.
We built languages. Nature is one. And we’re only just beginning to learn how to read it.
The Forest That Talks Back
In 1997, a wooded area ecologist named Suzanne Simard posted a paper that the scientific network, to begin with, received with extensive skepticism. She had been working in the forests of British Columbia, injecting radioactive carbon isotopes into the roots of paper birch trees, after which she was ready to see what came about. What happened was not what anyone expected: the carbon showed up in the roots of nearby Douglas fir trees.
The trees were sharing resources. Not accidentally, not incidentally—deliberately, through a fungal network threading through the soil beneath the forest floor.
This network—now popularly called the Wood Wide Web, though scientists prefer the more precise term ‘mycorrhizal network’ — is made up of fungi that attach to tree roots and extend their reach far beyond what the roots could achieve alone. The fungi get sugars from photosynthesis. The trees get water, phosphorus, nitrogen, and something stranger: information.
When insects attack a tree at the edge of a forest, it sends chemical signals through this network. The trees around it don’t wait to be attacked. They begin producing tannins and other defensive compounds before the insects reach them. They have, in the most literal sense, been warned.
Old trees—what Simard calls “mother trees,” the large, old-growth individuals whose root systems are connected to hundreds of younger trees—appear to send disproportionate amounts of carbon to seedlings growing in low light. Seedlings that are struggling. Whether this constitutes something like intention is a question scientists are careful about. But the behavior looks, functionally, like care.
The forest is not a collection of individual organisms competing for light and water. It’s a community with a communication infrastructure older than anything humans have ever built. The trees at the perimeter send warnings inward. The old trees subsidize the young ones. The whole system moves information in ways we’re still mapping.
And we spent centuries looking at forests and seeing only timber.
What Rivers Know
A river looks like motion. What it actually is is memory.
Every bend in a river’s path is a record of something that happened—a flood, a drought, a geological shift, or a period of heavy sediment load that pushed the channel sideways. Read the shape of a river, and you’re reading its history. Hydrologists call this the river’s morphology, and it encodes centuries of environmental information in the simple fact of how the water turns.
The Amazon contains about 20% of all of the freshwater that enters the world’s oceans. But greater than its volume, what is incredible about the Amazon is what it includes within it: sediment, nutrients, and organic matter from an area the size of the continental United States. When Amazon River water meets the Atlantic, the nutrient plume extends hundreds of kilometers into the sea, fertilizing marine life throughout an area larger than most countries. The river would not stop being a river whilst it hit the sea. Its influence continues, in chemical form, far out to sea.
Salmon understands this in a way no human instrument has been able to fully replicate. A Pacific salmon hatched in a small cove in Alaska imprints on the unique chemical signature of its beginning water—a cocktail of minerals, natural compounds, and microbial strains unique to that vicinity—and carries this memory for years because it roams heaps of kilometres of open ocean. When it is time to spawn, the salmon unearths its way back now not with GPS, now not with landmarks, but by following a chemical trail it remembered from the primary weeks of its existence. Rivers leave signatures, and existence evolves to read them.
Then there may be what rivers don’t forget about us. Sediment cores drilled from riverbeds and lake floors have emerged as some of the most treasured data in weather science. Layered with the aid of layers, these cores file pollen from historical plant groups, ash from volcanic eruptions, chemical signatures of warming and cooling periods, and traces of lead from Roman smelting operations thousands of years ago. The river doesn’t choose to remember. It just does, continuously, because that’s what water moving through a landscape inevitably does—it collects, deposits, and preserves.
Every river is a library. Most of them we haven’t bothered to read.
The Animals Who Knew First
On December 26, 2004, one of the deadliest tsunamis in recorded history struck coastlines across the Indian Ocean, killing over 230,000 human beings. In Yala National Park in Sri Lanka—one of the areas worst affected by the wave—wildlife officials are expected to find mass casualties among the animals. They found almost none.
Elephants had moved to higher ground hours before the wave arrived. Flamingos that typically nested in low-lying coastal areas had relocated inland. Dogs in affected cities reportedly refused to head out of doors that morning, in spite of their proprietors’ tries to walk them. Bats had changed their flight patterns. Almost no wild animal bodies were recovered from areas where hundreds of human beings died.
This wasn’t a coincidence. It wasn’t mystical. It was sensory.
Elephants can detect infrasound—low-frequency vibrations below the range of human hearing—through their feet as much as their ears. The seismic activity preceding the tsunami generated exactly this kind of vibration, travelling through the ground hours before the wave itself. Elephants felt it coming the way you might feel a bass speaker through a floor—except that for them, this was actionable data their nervous systems had evolved over millions of years to interpret.
Dogs have a similar sensitivity to barometric pressure changes. In the hours before a severe storm, the pressure drop is subtle enough that most humans don’t notice it. A dog notices. Sharks detect pressure and electromagnetic changes in the water that signal incoming storms. Before hurricanes, sharks have been documented diving to deep water up to two days before the storm makes landfall.
In Yunnan province in China, local people have observed for generations that ants move their eggs to higher ground before floods. Frogs call at particular times and in particular patterns that local farmers in parts of Southeast Asia have used as rain predictors for centuries. Science initially dismissed these observations as folk superstition. Then researchers started actually measuring ant behavior before flood events and measuring frog calling patterns against subsequent rainfall data and found that the farmers had been right all along.
What these animals have is not a sixth sense in any supernatural meaning. They have sensory apparatus calibrated to detect real physical phenomena that human perception simply doesn’t register. We stripped those sensory systems away over the course of our evolutionary history—traded seismic sensitivity for symbolic language, traded weather-prediction instinct for weather forecasting apps. The animals still have what we gave up.
The Language We’re Only Starting to Learn
In 2019, a team of researchers in Germany published findings showing that trees under drought stress emit ultrasonic clicking sounds—tiny vibrations produced when water columns inside the tree’s vascular system break under tension. These sounds are inaudible to humans without equipment. But insects have been found to orient toward or away from these sounds in ways that suggest they may be reading them as information about the tree’s condition.
The forest has a soundtrack we can’t hear.
Separately, researchers studying whale communication have been using machine learning tools to process decades of recorded humpback whale song, looking for grammatical structure—repeating units, variations, and responses. The early results suggest humpback communication is more structurally complex than previously understood, with elements that function in ways analogous to syntax. Not human syntax. Their own. Which is the point.
We’ve spent a remarkable amount of energy asking whether animals can learn human language—teaching chimpanzees sign language, training dolphins to respond to symbol boards—when the more interesting question might be whether we’re capable of learning theirs.
What’s emerging across ecology, bioacoustics, plant neurobiology, and animal behavior research is a picture of a natural world that is not passive, not silent, and not simple. It is active, communicative, and operating on information channels that human civilisation has spent most of its history ignoring entirely.
Why This Matters Right Now
There’s a practical reason to care about all of this beyond the philosophical satisfaction of knowing trees talk to each other.
Ecosystems make decisions. A forest that can warn its contributors of pest assaults and redistribute nutrients to suffering seedlings is more resilient than one that cannot. A river system whose morphology displays centuries of water control is doing flood management paintings that no engineered channel can mirror as affordably or as efficaciously. Animals that detect geological instability before human instruments do are providing early warning data that, if we were paying attention, could save lives.
We are currently dismantling these systems at a pace that outstrips our ability to understand what we’re losing. Old-growth forests—where the mycorrhizal networks are ancient and dense and most sophisticated—are still being cleared. Rivers are being straightened and channelled in ways that erase the morphological memory researchers are only now learning to read. Species that carry millennia of evolved environmental sensing are going extinct before we’ve catalogued their capabilities.
The language of nature is not decorative. It is functional, real, and—as it turns out—more sophisticated than most of us were taught to believe.
Learning to read it is not a romantic notion. At this point, it may be one of the more urgent practical projects our species has ahead of it.
The wooded area has been trying to inform us of something for a very long time. The question is whether or not we will slow down long enough to parent out what it’s miles.
+ There are no comments
Add yours