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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
How We Figured Out Fermentation
9:20
Fermented foods opened up a whole new nutritional landscape for us.
The Dinosaur Who Was Buried at Sea
12:11
Nobody had ever found a specimen like Borealopelta before.
The Biggest Frog that Ever Lived
7:05
Untangling the origins of Beelzebufo -- the giant frog that lived alongside the dinosaurs.
The Story of the Dino Stampede
10:43
To try to solve the puzzle of Lark Quarry, experts have turned to paleoichnology.
How the Walrus Got Its Tusks
7:42
A story that spans almost 20 million years.
When Dinosaurs Chilled in the Arctic
9:20
How were they able to survive in this harsh environment?
The World Before Plate Tectonics
9:24
This period was anything but boring.
When Dinosaur Look-Alikes Ruled the Earth
7:23
These animals truly ruled the Earth, becoming both abundant and diverse.
How We Identified One of Earth’s Earliest Animals
10:44
The key to solving the puzzle of Precambrian life was a tiny bit of fossilized fat.
The Two Viruses That We’ve Had For Millions of Years
9:11
The two viruses that we’ve had for millions of years.
How Plants Caused the First Mass Extinction
9:31
The arrival of plants on land would eventually help cause a massive extinction event.
How the Andes Mountains Might Have Killed a Bunch of Whales
8:27
Cerro Ballena has over 40 skeletons of marine mammals from the Late Miocene Epoch.
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