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When Fish Wore Armor

When Fish Wore Armor

Season 1 Episode 51
9:37
When Birds Had Teeth

When Birds Had Teeth

Season 1 Episode 52
11:29
When We First Walked

When We First Walked

Season 1 Episode 57
10:56
Did Raptorex Really Exist?

Did Raptorex Really Exist?

Season 1 Episode 58
12:27
Can We Get DNA From Fossils?

Can We Get DNA From Fossils?

Season 1 Episode 59
11:22
When Giant Amphibians Reigned

When Giant Amphibians Reigned

Season 1 Episode 60
9:51
Your Place in the Primate Family Tree

Your Place in the Primate Family Tree

Season 1 Episode 61
11:35
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Eons

When Insects First Flew

Season 1 Episode 49

Insects were the first animals to ever develop the ability to fly, and, arguably, they did it the best. But this development was so unusual that scientists are still working on, and arguing about, how and when insect wings first came about.