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Zephy

Environmental Science · Field Notes

Fantastic Fungi: 8 Cool Facts That Will Blow Your Mind

23rd April 2026  ·  8 min read

Forget everything you think you know about nature. Forget the animals, and forget the plants. There is a third kingdom—a hidden empire—that has been running this planet for nearly a billion years.

As Merlin Sheldrake masterfully explores in his book Entangled Life, fungi aren't just mushrooms you find on a pizza; they are the literal glue holding the world together. They are architects, survivors, and quite possibly the smartest organisms on earth without a single brain cell.

Here are 8 facts about fungi that will blow your mind:

1

They Predate Plants (By a Long Shot)

Long before the first tree ever thought about growing a leaf, fungi were already ruling the land. About 400 million years ago, the tallest things on earth weren't trees—they were Prototaxites. These were giant, spire-like fungi that stood nearly 9 metres tall.

Plants only managed to survive on land because fungi mentored them, acting as their root systems for millions of years before plants evolved their own.

2

The Wood Wide Web

This is where it gets properly sci-fi. Beneath your feet is a massive, shimmering network called mycelium. It's a web of tiny threads that connects almost every tree in a forest. Through this wood wide web, trees actually talk to each other.

They share nutrients, warn each other about pests, and even nurture their sapling children. If a tree is dying, the fungi can reroute its remaining nutrients to its neighbours. It's the ultimate act of community.

3

They Can Eat Plastic (No, Seriously)

In our 2026 quest to fix the planet, fungi are the ultimate clean-up crew. Researchers have discovered species like Aspergillus tubingensis and Pestalotiopsis microspora that can literally digest polyurethane (plastic). They break down the chemical bonds and turn it into organic matter.

Some can even survive on a diet of pure plastic in anaerobic environments—like the bottom of a landfill.

4

They Thrive on Radiation

After the Chernobyl disaster, scientists found something wild: "radiotrophic" fungi growing on the walls of the damaged reactor. These fungi don't just survive radiation—they eat it.

They use melanin—the same pigment in our skin—to convert gamma radiation into chemical energy for growth.

5

The Largest Living Thing on Earth

If you think a blue whale is big, think again. The largest organism on the planet is a Honey Mushroom (Armillaria ostoyae) in Oregon, USA.

~10 km²

Area covered

2,000–8,000

Years old

1,600+

Football pitches

Most of it is hidden underground as a massive mycelial mat—the mushroom caps we see are just the "fruit" it pops up occasionally.

6

Mycelium: The Building Material of the Future

Mycelium is the ultimate climate-friendly tech. Because it grows so fast and is incredibly strong, companies are now using it to create:

  • Mushroom Leather: A vegan, carbon-neutral alternative to cowhide.
  • Compostable Packaging: Replacing Styrofoam with stuff you can literally throw in your garden to fertilize your tomatoes.
  • Fireproof Insulation: It's naturally flame-resistant and traps heat better than many synthetic materials.
7

They Breathe Like Us

One of the weirdest things about fungi is that they are biologically closer to humans than plants. While plants breathe CO₂ and exhale oxygen, fungi do the opposite. They inhale oxygen and exhale carbon dioxide, just like we do.

They don't have chlorophyll, so they don't need the sun—they are the masters of the dark.

8

The Ultimate Climate Shield

Fungi are the planet's primary carbon sinks. They lock away huge amounts of carbon in the soil, preventing it from escaping into the atmosphere and heating up our 2026 world even further.

Without fungi to decompose dead matter and lock that carbon back into the earth, our climate would have spiralled out of control eons ago.

Looking into the Future

As Merlin Sheldrake puts it, fungi make us question where one organism ends and another begins—and as we move further into 2026, those boundaries are blurring in the most brilliant ways. We aren't just observing the fungal kingdom anymore; we're starting to wear it.

Imagine stepping out in a "leather" biker jacket grown from mycelium in a matter of days, offering all the durability of cowhide with a fraction of the carbon footprint. Or imagine picking up a book where the "paper" is actually a fungal composite—meaning that once you've finished the final chapter, you could literally plant the book in your garden to fertilize your veg.

This is more than a material revolution; it's a shift towards a world where our belongings are as alive and circular as the forests themselves.

The Third Kingdom

Fungi have been quietly running the planet for a billion years.

Perhaps it's time we started paying attention.