When Whales Walked

Episode 1

The Trouble With Trilobites

Jun 26, 2017

Episode 2

When Did the First Flower Bloom?

Jul 3, 2017

Episode 3

The Tully Monster & Other Problematic Creatures

Jul 11, 2017

Episode 4

Stegosaurs: Tiny Brains & Thagomizers

Jul 17, 2017

Episode 5

What Colors Were Dinosaurs?

Jul 24, 2017

Episode 6

The Story of Saberteeth

Jul 31, 2017

Episode 7

That Time Oxygen Almost Killed Everything

Aug 7, 2017

Episode 8

The Biggest Thing That Ever Flew

Aug 14, 2017

Episode 9

Dimetrodon: Our Most Unlikely Ancestor

Aug 21, 2017

Episode 10

The Extinction That Never Happened

Aug 28, 2017

Episode 11

The Strange Case of the Buzzsaw Jaws

Sep 11, 2017

Episode 12

The Age of Giant Insects

Sep 18, 2017

Episode 13

History's Most Powerful Plants

Sep 26, 2017

Episode 14

How Did Dinosaurs Get So Huge?

Oct 2, 2017

Episode 15

When The Earth Was Purple

Oct 9, 2017

Episode 16

'Living Fossils' Aren't Really a Thing

Oct 16, 2017

Episode 17

When Whales Walked

Oct 23, 2017

Episode 18

An Illustrated History of Dinosaurs

Oct 30, 2017

Episode 19

A Brief History of Geologic Time

Nov 6, 2017

Episode 20

The Search for the Earliest Life

Nov 20, 2017

Episode 21

The Facts About Dinosaurs & Feathers

Nov 27, 2017

Episode 22

The Last Time the Globe Warmed

Dec 4, 2017

Episode 23

What Happened to the World's Greatest Ape?

Dec 11, 2017

Episode 24

When Giant Fungi Ruled

Dec 18, 2017