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How the Squid Lost Its Shell

How the Squid Lost Its Shell

Season 1 Episode 38
8:05
How the Chalicothere Split In Two

How the Chalicothere Split In Two

Season 1 Episode 39
7:03
The Age of Reptiles in Three Acts

The Age of Reptiles in Three Acts

Season 1 Episode 40
10:45
The Weird, Watery Tale of Spinosaurus

The Weird, Watery Tale of Spinosaurus

Season 1 Episode 41
7:28
Where Did Viruses Come From?

Where Did Viruses Come From?

Season 1 Episode 45
7:29
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
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Eons

What Was the Ancestor of Everything?

Season 1 Episode 37

The search for our origins go back to a single common ancestor -- one that remains shrouded in mystery. It’s the ancestor of everything we know and today scientists call it the last universal common ancestor, or LUCA.

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When a Tiny Land Bridge Triggered an Ice Age
10:27
Understanding the Isthmus of Panama.
How Chewing May Have Beat Extinction
9:35
Tiny mammals and a group of lizard-like reptiles shared a trait that helped them survive extinction.
How We Figured Out an Asteroid Killed the Dinosaurs
10:43
Where the space rock came from 66 million years ago that crashed and killed the dinosaurs.
Crawling Out Of The Water Was An Evolutionary Accident
8:19
Fish evolved terrestrial traits to...stay fish?
Do Chins Make Us Human?
12:07
We're the only ones with chins, and we don't know why.
The Golden Age of Sharks
12:40
Why did sharks get so incredibly diverse and odd during the Golden Age?
Darwin's Unexpected Final Obsession
12:12
What was Charles Darwin really obsessed with?
Are All Oceans Basically Reincarnated?
12:29
Did you know ocean basins are reincarnated?
Could This Sperm Whale Eat The Meg?
8:36
How did such a large predator survive?
When Red Pandas Roamed North America
9:41
How did a relative of the red panda end up in North America?
Webs vs wings: The arms race of the air
8:10
How did the competition of spiders vs insects drive them both into the air?
The Graveyard at the Center of the Earth
12:38
Why plate tectonics don't make sense.
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