Episode Overview
Imagine a time when oxygen nearly extinguished all life on Earth. Three billion years ago, the planet looked completely different, and an excess of oxygen nearly led to catastrophe for every living being. What seemed like a blessing turned into a perilous situation that could have changed the course of life as we know it.
Show Information
Season 1 Episodes 24
1.
The Trouble With Trilobites
2.
When Did the First Flower Bloom?
3.
The Tully Monster & Other Problematic Creatures
4.
Stegosaurs: Tiny Brains & Thagomizers
5.
What Colors Were Dinosaurs?
6.
The Story of Saberteeth
7.
That Time Oxygen Almost Killed Everything
8.
The Biggest Thing That Ever Flew
9.
Dimetrodon: Our Most Unlikely Ancestor
10.
The Extinction That Never Happened
11.
The Strange Case of the Buzzsaw Jaws
12.
The Age of Giant Insects
13.
History's Most Powerful Plants
14.
How Did Dinosaurs Get So Huge?
15.
When The Earth Was Purple
16.
'Living Fossils' Aren't Really a Thing
17.
When Whales Walked
18.
An Illustrated History of Dinosaurs
19.
A Brief History of Geologic Time
20.
The Search for the Earliest Life
21.
The Facts About Dinosaurs & Feathers
22.
The Last Time the Globe Warmed
23.
What Happened to the World's Greatest Ape?
24.
When Giant Fungi Ruled
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