All Episodes

When We Took Over the World

When We Took Over the World

The Mystery Behind the Biggest Bears of All Time

The Mystery Behind the Biggest Bears of All Time

When We Tamed Fire

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

When Giant Scorpions Swarmed the Seas

Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes.

When We First Made Tools

When We First Made Tools

The Island of Huge Hamsters and Giant Owls

The Island of Huge Hamsters and Giant Owls

How 7,000 Years of Epic Floods Changed the World

How 7,000 Years of Epic Floods Changed the World

The Humans That Lived Before Us

The Humans That Lived Before Us

How Blood Evolved (Many Times)

How Blood Evolved (Many Times)

When Humans Were Prey

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

Why Megalodon (Definitely) Went Extinct

What happened to the largest shark in history?

When Apes Conquered Europe

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

How Sloths Went From the Seas to the Trees

The story of sloths is one of astounding ecological variability.

When Camels Roamed North America

Camels' origins story begins in an environment you’d never expect: a rainforest.

About Eons

Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth. From the dawn of life in the Archaean Eon through the Mesozoic Era — the so-called “Age of Dinosaurs” -- right up to the end of the most recent Ice Age.

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