Season 4
The Ancient Human Species With A Missing Body
Would it really be impossible for us to reconstruct their morphology?
The Ancient Human Species With A Missing Body
Why Sour May Be The Oldest Taste
Sour used to be the taste of danger. But, now its role has reversed.
Why Sour May Be The Oldest Taste
How the Smallest Animal Got So Simple
This tiny, simple animal, the Myxozoans, evolved from something bigger and more complex.
How the Smallest Animal Got So Simple
The Extreme Hyenas That Didn't Last
Only a few million years ago, Hyenas lived very different lives from what we know today.
The Extreme Hyenas That Didn't Last
When a Giant Pterosaur Ruled the European Islands
The giant pterosaur's occupied the empty Hateg Island.
When a Giant Pterosaur Ruled the European Islands
Why We Only Have Ten Toes (It's a Long Story)
We learn why all mammals today, from humans to bats, have five fingers or fewer.
Why We Only Have Ten Toes (It's a Long Story)
The Sudden Rise of the First Colossal Animal
A truly enormous ichthyosaur reached its size within just a few million years.
The Sudden Rise of the First Colossal Animal
How Horses Went From Food To Friends
With evidence from from art, archaeology, and ancient DNA, we put together horses history.
How Horses Went From Food To Friends
How Vertebrates Got Teeth... And Lost Them Again
Here's why teeth would go on to disappear in some groups of vertebrate.
How Vertebrates Got Teeth... And Lost Them Again
How Our Deadliest Parasite Turned To The Dark Side
Around 10,000 years ago, a parasite made a huge leap and found its way to a new host: Us.
How Our Deadliest Parasite Turned To The Dark Side
Primates vs Snakes (An Evolutionary Arms Race)
The Snake Detection Hypothesis is deeply embedded in primates, including us.
Primates vs Snakes (An Evolutionary Arms Race)
The Fossil Record In Your Mouth
Dental calculus is the only part of your body that actually fossilizes while you're alive!
The Fossil Record In Your Mouth
Why The Paleo Diet Couldn't Save The Neanderthals
Here's why these skilled toolmakers, hunters, and foragers' population disappeared.
Why The Paleo Diet Couldn't Save The Neanderthals
When It Was Too Hot for Leaves
For the first 80 million years of plants' existence, leaves didn't exist. Here's why.
When It Was Too Hot for Leaves
How Ancient Whales May Have Changed the Deep Ocean
Here's how the evolution of ocean-going whales affected deep-ocean communities.
How Ancient Whales May Have Changed the Deep Ocean
When Mammals Only Went Out At Night
Scientists discover dinosaurs and tiny mammals' sleep habits are different than thought.
When Mammals Only Went Out At Night
How a Mass Extinction Event Created the Amazon
The history of how the Amazon's revolution began in just one day.
How a Mass Extinction Event Created the Amazon
How a Supervolcano Ignited an Evolutionary Debate
Discover the effects of the Toba supervolcano.
How a Supervolcano Ignited an Evolutionary Debate
The Creature That Stumped Darwin
The Toxodon fossils help reveal the mystery surrounding evolution.
The Creature That Stumped Darwin
The Story of How the Starfish Got its Arms Reminds us that Animals have Deep Histories.
How the Starfish Got Its Arms
Where Are All the Medium-Sized Dinosaurs?
Learn More about the Very Rare Medium-Sized Dinosaurs.