Season 2

When Giant Deer Roamed Eurasia
Megaloceros was one of the largest members of the deer family ever to walk the Earth.
When Giant Deer Roamed Eurasia

When the Synapsids Struck Back
Our world is the way it is because of the time when the synapsids struck back.
When the Synapsids Struck Back

How Earth's First, Unkillable Animals Saved the World
How Earth's First, Unkillable Animals Saved the World
How Earth's First, Unkillable Animals Saved the World

When We Met Other Human Species
We all belong to the only group of hominins on the planet today. But we weren’t alone.
When We Met Other Human Species

How Evolution Works (And How We Figured It Out)
We’ll try to explain how evolution actually works and how we came to understand it.
How Evolution Works (And How We Figured It Out)

The Hellacious Lives of the "Hell Pigs"
There is some evolutionary method to the anatomical madness that is the "hell pig."
The Hellacious Lives of the "Hell Pigs"

The History of Climate Cycles (and the Woolly Rhino)
The History of Climate Cycles (and the Woolly Rhino) Explain
The History of Climate Cycles (and the Woolly Rhino)

The Ghostly Origins of the Big Cats
Scientists have recently discovered a major clue about the origins of the big cats.
The Ghostly Origins of the Big Cats

The Mystery Behind the Biggest Bears of All Time
The Mystery Behind the Biggest Bears of All Time
The Mystery Behind the Biggest Bears of All Time

The ability to make and use fire has fundamentally changed the arc of our evolution.
When We Tamed Fire

When Giant Scorpions Swarmed the Seas
Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes.
When Giant Scorpions Swarmed the Seas

How 7,000 Years of Epic Floods Changed the World
How 7,000 Years of Epic Floods Changed the World
How 7,000 Years of Epic Floods Changed the World

Not too long ago, our early human ancestors were under threat of attack from predators.
When Humans Were Prey

Today, apes live only in Africa and Asia but this wasn't always the case.
When Apes Conquered Europe

How Sloths Went From the Seas to the Trees
The story of sloths is one of astounding ecological variability.