Skip to main content

Up Next

Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Back to Show
Untold Earth

This Upside Down Cave Is a Microscopic Warzone

Season 1 Episode 9

Below the Chihuahuan Desert in southeastern New Mexico, lies an extensive system of limestone caves, among them the famed Carlsbad Cavern, home to one of North America's largest underground chambers. But there is more to this subterranean world than gigantic geological formations. It is also ground zero for a microbial war that’s been raging for thousands of years, right beneath our feet.

Support Provided By
Truffles Are Hiding a Dirty Little Secret
7:11
How are truffles key to the survival of the forest ecosystem at large?
Why Antelope Canyon Never Looks The Same Twice
6:49
What does it mean to preserve a place that is defined by it's impermanence?
This Volcano Won't Stop Erupting
9:12
What does one of Earth's harshest environments teach us about planet survival?
What NASA Is Looking For In Yellowstone National Park
6:42
At 87º Celcius, the Grand Prismatic Spring is a beacon of microbial life and discovery.
The Story Behind This Giant Rock in the Middle of a Field
6:57
At 50 million years old, the origins of Devils Tower or Bears Lodge remains a mystery.
What Makes The “Northern Lights of the Sea” So Magical?
8:26
An ancient and modern mystery, what about bioluminescence inspires such obsession?
What Are These Strange Towers Growing Out of This Lake?
8:56
Over half a million years old, the story of Mono Lake is one of survival.
You Aren’t Paying Enough Attention to Moss
5:44
At 450 million years old, moss may hold the key to surviving our rapidly warming planet.
Why Do Hundreds of Icebergs Keep Visiting This Town?
7:05
What are icebergs doing so close to land and why must we keep an eye on them?
Redwoods Shouldn't Be So Tall. Here's Why They Are
7:30
What makes the Coast Redwood, a tree as old as the dinosaurs, epically singular in nature?
Active loading indicator