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When Fish First Breathed Air

When Fish First Breathed Air

Season 1 Episode 46
8:40
Dinosaurs

How the T-Rex Lost Its Arms

Season 1 Episode 47
6:54
FAQs From Our First Year

FAQs From Our First Year

Season 1 Episode 48
9:20
When Insects First Flew

When Insects First Flew

Season 1 Episode 49
8:38
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
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Eons

Where Did Viruses Come From?

Season 1 Episode 45

There are fossils of viruses, of sorts, preserved in the DNA of the hosts that they’ve infected. Including you. This molecular fossil trail can help us understand where viruses came from, how they evolved and it can even help us tackle the biggest question of all: Are viruses alive?

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Season
This is Lizards' Fascinating And Competitive History.
How Humans Lost Their Fur
11:27
This small change in our appearance has helped shape the evolution of our entire lineage.
The Rise and Fall of the Tallest Mammal to Walk the Earth
7:53
It arose from rhino ancestors, but Paraceratherium took a different evolutionary path.
How Plankton Created A Bizarre Giant of the Seas
8:48
Aegirocassis may have been the biggest animal in the Early Ordovician.
Why Do Things Keep Evolving Into Crabs?
6:46
What is it about the crab’s form that makes it so evolutionarily successful?
How Ankylosaurs Got Their Clubs
7:52
We’ve only started to get to the bottom of how clubs worked and how it developed.
How Plants Became Carnivores
9:48
How and why does botanical carnivory keep evolving?
What Happened To Primates In North America?
8:54
Our primate family tree actually originated here!
Why Did These Ancient Gophers Have Horns?
8:23
The horns probably had a purpose - one that rodents would likely benefit from today.
The Sea Monster from the Andes
6:27
How did this giant marine reptile end up high in the Andes Mountains?
How Ancient Art Captured Australian Megafauna
9:43
What if the rock art drawings of strange animals really existed?
The Oddest Couple in the Fossil Record
8:48
How did Thrinaxodon and Broomistega become entombed together?
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