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Join hosts Michelle Barboza-Ramirez, 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.

Watch • 9:15
Eons
When Dinosaurs Threw Up A Mystery
How dino stomachs are revealing a mystery.
Special: 9:15
Watch • 10:47
Eons
Did Dinosaurs' Extinction Give Us Fruit?
One of the most surprising effects of the cascade of changes was...fruit?
Special: 10:47
Watch • 8:37
Eons
Why Paleontologists Can’t Stop Fighting About Spinosaurus
What does it mean to be a “semi-aquatic” dinosaur?
Special: 8:37
Watch • 27:01
Building Blocks
Every Child is Different
Every child has their own pace and journey.
Episode: S1 E5 | 27:01
Watch • 11:15
Reactions
Liquid Marbles are the Coolest Scientific Breakthrough I've Made (So Far)
George tries to make a new discovery in a huge field of science... and he might have.
Episode: S11 E9 | 11:15
Watch • 17:14
PBS Space Time
Why The Multiverse Could Be Real
Can something that exists be bad science?
Episode: S11 E9 | 17:14
Watch • 18:56
PBS Space Time
Why Is All DNA Right Handed?
It may be that our very DNA inherited its twist from the underlying handedness of reality.
Episode: S11 E8 | 18:56
Watch • 1:54:54
FRONTLINE
Remaking the Middle East: Israel vs. Iran
FRONTLINE examines how Israel ended up fighting wars in Gaza and Iran — and the U.S. role.
Episode: S2025 E10 | 1:54:54
Watch • 17:21
PBS Space Time
Are The Fundamental Constants Finely Tuned? | The Naturalness Problem
Did God have any choice in creating the world? So asked Albert Einstein
Episode: S11 E7 | 17:21