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Untold Earth
What Turned These Ancient Trees to Stone?
Season 2
Episode 3
Locked within the stones and fossils of Petrified Forest National Park lies a record of life, death, and resilience during one of Earth's most extreme periods of environmental change. What secrets do these fossilized ecosystems reveal about the prehistoric past, and how can they help predict the future of life on Earth?
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7:53
Fossilized footprints suggest human presence in the Americas far earlier than previously believed.
8:22
The Bay of Fundy's extreme 50 foot tides carry enough potential energy to power a small city.
10:55
Every winter, giant cuttlefish gather by the thousands for a battle royale to win a mate.
8:22
In Florida’s wetlands the carnivorous pitcher plant is blurring the lines between predator and ally.
7:33
The Northern Lights captivate viewers, but there may be more to this phenomenon than meets the eye.
7:53
Discover how The Atchafalaya Basin protects Louisiana's coast from hurricanes.
10:06
Meet Pando, an ancient tree in Utah that has grown into one of Earth's largest living wonders.
7:11
How are truffles key to the survival of the forest ecosystem at large?
6:49
What does it mean to preserve a place that is defined by it's impermanence?
5:57
Microbial warfare has been raging for thousands of years deep below the Chihuahuan Desert.
9:12
What does one of Earth's harshest environments teach us about planet survival?
6:41
At 87º Celcius, the Grand Prismatic Spring is a beacon of microbial life and discovery.