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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
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
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Eons

The Weird, Watery Tale of Spinosaurus

Season 1 Episode 41

In 1912, a fossil collector discovered some strange bone fragments in the eerie, beautiful Cretaceous Bahariya rock formation of Egypt. Eventually, that handful of fossil fragments would reveal to scientists one of the strangest dinosaurs that ever existed -- the world’s only known semi-aquatic dinosaur.

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What's the Oldest Beverage
11:55
What was the first ever drink?
The Mystery of South America's False Horses
9:45
How did the "false horse," Thoatherium, and its relatives survive?
When The Atlantic Ripped Open A Supercontinent
10:21
Did you know volcanoes created the Atlantic Ocean that we know today?
The Second Time Sponges Took Over The World
8:04
Learn about how researchers have discovered a piece of a weird, but critical, time in the deep past…
No Single Cradle of Humankind
10:46
Maybe there wasn’t just one so-called "cradle of humankind"?
The Hazy Evolution of Cannabis
10:18
How did such a strange plant like cannabis come to be in the first place?
What Will Earth Be Like 300 Million Years From Now?
9:34
We’re taking a look towards the deep future. After all, the story is far from over.
What Was The Earliest Surgery?
7:59
When did we start practicing medicine in its varied, complex forms?
How Snake Venom Sparked An Evolutionary Arms Race
9:11
For some, the rise of venomous elapid snakes was an almost apocalyptic catastrophe.
Why Is It So Hard to Tell the Sex of a Dinosaur?
12:07
When you only have fossils, how do you know if a dinosaur is female or male?
Animals Are Older Than We Thought
11:57
What are animal-like fossils doing in rocks a billion years old?
Our Most Mysterious Extinct Cousins
9:41
Paranthropus lived alongside our ancestors. If we are still here, why aren’t they?
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