Skip to main content

Why does this forest look like a fingerprint?

We set out to solve why a forest in the middle of Uruguay looked like that — and wound up discovering something much bigger.

Christophe Haubursin
Christophe Haubursin is a senior producer for the Vox video team. Since joining the team in 2016, he has produced for Vox’s YouTube channel and Emmy-nominated shows Glad You Asked and Explained.

Deep in the geographic center of Uruguay, there’s a peculiar group of trees just a few kilometers down the road from the small town of San Gregorio de Polanco. From the ground, it looks like any other forest, with tall trees reaching deep as far as the eyes can see. But from above, the view is mind-boggling: Hundreds of trees are arranged in perfect concentric arcs, all spiraling toward the center. Together, they look remarkably like a human fingerprint.

When we first saw this forest, thanks to a Reddit post, we were fascinated. Why had they been arranged in this shape? Who planted them there? And why — when you zoom out on satellite view — was the entire country of Uruguay covered in similar-looking forests? To answer that question, we went straight to the source: interviewing locals, experts, and people whose lives have been shaped by a transformed landscape and economy.

More in Video

Why do we have grass lawns?Why do we have grass lawns?
Video

Lawns aren’t natural, so why do so many Americans have one?

By Dean Peterson
Can Paris fix its poop problem before the Olympics?Can Paris fix its poop problem before the Olympics?
Video

Paris’s bold Olympic promise to clean the River Seine.

By Coleman Lowndes
What should an electric car sound like?What should an electric car sound like?
Video

The driving sounds of EVs, explained by the designers who make them.

By Christophe Haubursin
Noise canceling can help save your earsNoise canceling can help save your ears
Today, Explained newsletter

We’re probably all listening to music too loudly, alas.

By Caroline Houck
Are headphones destroying our hearing?Are headphones destroying our hearing?
Even Better

You’re probably listening too loud.

By Edward Vega
Most Americans are wrong about crimeMost Americans are wrong about crime
Video

But they’re right that something has changed in American cities.

By Adam Freelander