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The Evolution of the Heart (A Love Story)

The Evolution of the Heart (A Love Story)

Season 2 Episode 12
9:00
How 7,000 Years of Epic Floods Changed the World

How 7,000 Years of Epic Floods Changed the World

Season 2 Episode 13
9:28
The Island of Huge Hamsters and Giant Owls

The Island of Huge Hamsters and Giant Owls

Season 2 Episode 14
11:41
The Giant Bird That Got Lost in Time

The Giant Bird That Got Lost in Time

Season 2 Episode 15
8:33
When We First Made Tools

When We First Made Tools

Season 2 Episode 16
9:08
Ancient Fauna, Flora & Fungi

When Giant Scorpions Swarmed the Seas

Season 2 Episode 17
11:38
When We Tamed Fire

When We Tamed Fire

Season 2 Episode 18
11:46
The Mystery Behind the Biggest Bears of All Time

The Mystery Behind the Biggest Bears of All Time

Season 2 Episode 19
10:41
The Croc That Ran on Hooves

The Croc That Ran on Hooves

Season 2 Episode 22
8:41
The History of Climate Cycles (and the Woolly Rhino)

The History of Climate Cycles (and the Woolly Rhino)

Season 2 Episode 23
13:14
The Hellacious Lives of the "Hell Pigs"

The Hellacious Lives of the "Hell Pigs"

Season 2 Episode 24
7:17
How Evolution Works (And How We Figured It Out)

How Evolution Works (And How We Figured It Out)

Season 2 Episode 25
12:09
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Eons

The Island of Shrinking Mammoths

Season 2 Episode 11

The mammoths fossils found on the Channel Islands off the coast of southern California are much smaller than their relatives found on the mainland. They were so small that they came to be seen as their own species. How did they get there? And why were they so small?
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