Season 5 Episodes31
E1What Happened to the World's Biggest Beaver?
E2The Reign of the Hell Ants
E3The Pandemic That Lasted 15 Million Years
E4When We First Talked
E5The Return of Giant Skin-Shell Sea Turtles
E6The Genes We Lost Along the Way
E7Our Bizarre, Possibly Venomous, Relative
E8How Worm Holes Ended Wormworld
E9How Humans Became (Mostly) Right-Handed
How Chilis Got Spicy (and Why We Love the Burn)
How To Survive the Little Ice Age
When Crocs Thrived in the Seas
When Trees Took Over the World
How Weasels Got Skinny
Where Are All The Squid Fossils?
Did These Giant Sloths Poop Themselves to Death?
The Traits That Spawned the Age of Mammals
The Island of the Last Surviving Mammoths
Where Are All the Medium-Sized Dinosaurs?
How the Starfish Got Its Arms
The Creature That Stumped Darwin
How Pollination Got Going Twice
How a Supervolcano Ignited an Evolutionary Debate
How a Mass Extinction Event Created the Amazon
When Mammals Only Went Out At Night
E26How Ancient Whales May Have Changed the Deep Ocean
How Dinosaurs Coupled Up
When It Was Too Hot for Leaves
Why The Paleo Diet Couldn't Save The Neanderthals
The Fossil Record In Your Mouth
When Pterosaurs Walked
Cast2
Kallie Moore
Self
Blake de Pastino
Self
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