Season 3

Video thumbnail: Eons How the Walrus Got Its Tusks

Eons

How the Walrus Got Its Tusks

A story that spans almost 20 million years.

How the Walrus Got Its Tusks

Video thumbnail: Eons When Dinosaurs Chilled in the Arctic

Eons

When Dinosaurs Chilled in the Arctic

How were they able to survive in this harsh environment?

When Dinosaurs Chilled in the Arctic

Video thumbnail: Eons When Dinosaur Look-Alikes Ruled the Earth

Eons

When Dinosaur Look-Alikes Ruled the Earth

These animals truly ruled the Earth, becoming both abundant and diverse.

When Dinosaur Look-Alikes Ruled the Earth

Video thumbnail: Eons How Plants Caused the First Mass Extinction

Eons

How Plants Caused the First Mass Extinction

The arrival of plants on land would eventually help cause a massive extinction event.

How Plants Caused the First Mass Extinction

Video thumbnail: Eons How the Andes Mountains Might Have Killed a Bunch of Whales

Eons

How the Andes Mountains Might Have Killed a Bunch of Whales

Cerro Ballena has over 40 skeletons of marine mammals from the Late Miocene Epoch.

How the Andes Mountains Might Have Killed a Bunch of Whales

Video thumbnail: Eons The Risky Paleo Diets of Our Ancestors

Eons

The Risky Paleo Diets of Our Ancestors

Part of a secret to our success as a species has been our early experimentation with food.

The Risky Paleo Diets of Our Ancestors

Video thumbnail: Eons When a Billion Years Disappeared

Eons

When a Billion Years Disappeared

Some rocks below the Great Unconformity are 1.2 billion years older than those above it.

When a Billion Years Disappeared

Video thumbnail: Eons How Dogs (Eventually) Became Our Best Friends

Eons

How Dogs (Eventually) Became Our Best Friends

It took thousands of years of interactions to develop our deep bond with dogs.

How Dogs (Eventually) Became Our Best Friends

Video thumbnail: Eons How the Egg Came First

Eons

How the Egg Came First

We’re here to tell you: The egg came first.

How the Egg Came First