Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth. From the dawn of life in the Archaean Eon through the Mesozoic Era — the so-called “Age of Dinosaurs” -- right up to the end of the most recent Ice Age.
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Extra Life: A Short History of Living Longer
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Full Episodes
Season
Episode
11:27
Eons
How Humans Lost Their Fur
This small change in our appearance has helped shape the evolution of our entire lineage.
Episode
7:53
Eons
The Rise and Fall of the Tallest Mammal to Walk the Earth
It arose from rhino ancestors, but Paraceratherium took a different evolutionary path.
Episode
8:48
Eons
How Plankton Created A Bizarre Giant of the Seas
Aegirocassis may have been the biggest animal in the Early Ordovician.
Episode
6:46
Eons
Why Do Things Keep Evolving Into Crabs?
What is it about the crab’s form that makes it so evolutionarily successful?
Episode
7:52
Eons
How Ankylosaurs Got Their Clubs
We’ve only started to get to the bottom of how clubs worked and how it developed.
Episode
8:23
Eons
When Rodents Had Horns
The horns probably had a purpose - one that rodents would likely benefit from today.
Episode
6:27
Eons
The Sea Monster from the Andes
How did this giant marine reptile end up high in the Andes Mountains?
Episode
9:43
Eons
How Ancient Art Captured Australian Megafauna
What if the rock art drawings of strange animals really existed?
Science & Nature
Preview
0:30
Extra Life: A Short History of Living Longer
Preview
Episode
56:53
Canyons & Ice: The Last Run of Dick Griffith
CANYONS & ICE: The Last Run of Dick Griffith
Preview
0:30
Human: The World Within
Episode 6 Preview | React
Preview
0:30
Human: The World Within
Episode 1 Preview | Birth
Clip
2:46
Human: The World Within
Proprioception - The Sixth Sense
Clip
2:45
Human: The World Within
Engineering Lost Function Inside the Body
Clip
5:09
Life at the Waterhole
Face-to-face with an Elephant
Clip
2:54
Life at the Waterhole
Herd Love Is In the Air
Clip
3:00
Life at the Waterhole
Insects Swarm and a Family Nests
Clip
2:32
Life at the Waterhole
A Spotted Hyena Arrives
Clip
4:38
Greta Thunberg: A Year to Change the World
Direct Air Capture
Clip
4:23
Greta Thunberg: A Year to Change the World
COVID-19's Impact on Climate
Clip
3:55
Greta Thunberg: A Year to Change the World
Reindeer Face Starvation
Clip
4:25
Greta Thunberg: A Year to Change the World
Athabasca Glacier
Clip
2:16
Extinction: The Facts
The Last Two White Rhinos
Preview
0:30
Extinction: The Facts
Trailer
Special
Extinction: The Facts
Extinction: The Facts
Episode
48:30
Europe's New Wild
The Missing Lynx
Episode
48:30
Europe's New Wild
Return of the Titans
Preview
0:30
Europe's New Wild
Episode 4 Preview | Europe's Amazon
Preview
0:30
Europe's New Wild
Episode 2 Preview | Return of the Titans
Episode
55:47
When Disaster Strikes
A Perfect Storm
Episode
55:16
When Disaster Strikes
Paradise Lost
Episode
55:13
When Disaster Strikes
The Silent Killer
Preview
0:30
When Disaster Strikes
Episode 3 Preview | Paradise Lost
Special
The Brain Revolution
The Brain Revolution
Episode
5:21
Human Elements
Think Like an Octopus
Episode
6:08
Human Elements
The Translator
Episode
5:58
Human Elements
Tracking Invisible Cats
Episode
5:26
Human Elements
