Season 3

Video thumbnail: Eons How Plankton Created A Bizarre Giant of the Seas

Eons

How Plankton Created A Bizarre Giant of the Seas

Aegirocassis may have been the biggest animal in the Early Ordovician.

How Plankton Created A Bizarre Giant of the Seas

Video thumbnail: Eons The Oddest Couple in the Fossil Record

Eons

The Oddest Couple in the Fossil Record

How did Thrinaxodon and Broomistega become entombed together?

The Oddest Couple in the Fossil Record

Video thumbnail: Eons How We Figured Out Fermentation

Eons

How We Figured Out Fermentation

Fermented foods opened up a whole new nutritional landscape for us.

How We Figured Out Fermentation

Video thumbnail: Eons The Dinosaur Who Was Buried at Sea

Eons

The Dinosaur Who Was Buried at Sea

Nobody had ever found a specimen like Borealopelta before.

The Dinosaur Who Was Buried at Sea

Video thumbnail: Eons The Biggest Frog that Ever Lived

Eons

The Biggest Frog that Ever Lived

Untangling the origins of Beelzebufo -- the giant frog that lived alongside the dinosaurs.

The Biggest Frog that Ever Lived

Video thumbnail: Eons The Story of the Dino Stampede

Eons

The Story of the Dino Stampede

To try to solve the puzzle of Lark Quarry, experts have turned to paleoichnology.

The Story of the Dino Stampede

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 We Identified One of Earth’s Earliest Animals

Eons

How We Identified One of Earth’s Earliest Animals

The key to solving the puzzle of Precambrian life was a tiny bit of fossilized fat.

How We Identified One of Earth’s Earliest Animals

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