Sezon 5
Bölümler
1 What Happened to the World's Biggest Beaver? 13 Oca 2021 
2 The Reign of the Hell Ants 21 Oca 2021 
3 The Pandemic That Lasted 15 Million Years 28 Oca 2021 
4 When We First Talked 11 Şub 2021 
5 The Return of Giant Skin-Shell Sea Turtles 17 Şub 2021 
6 The Genes We Lost Along the Way 24 Şub 2021 
7 Our Bizarre, Possibly Venomous, Relative 10 Mar 2021 
8 How Worm Holes Ended Wormworld 18 Mar 2021 
9 How Humans Became (Mostly) Right-Handed 24 Mar 2021 10 How Chilis Got Spicy (and Why We Love the Burn) 7 Nis 2021 11 How To Survive the Little Ice Age 20 Nis 2021 12 When Crocs Thrived in the Seas 29 Nis 2021 13 When Trees Took Over the World 12 May 2021 14 How Weasels Got Skinny 20 May 2021 15 Where Are All The Squid Fossils? 3 Haz 2021 16 Did These Giant Sloths Poop Themselves to Death? 14 Tem 2021 17 The Traits That Spawned the Age of Mammals 21 Tem 2021 18 The Island of the Last Surviving Mammoths 29 Tem 2021 19 Where Are All the Medium-Sized Dinosaurs? 12 Ağu 2021 20 How the Starfish Got Its Arms 24 Ağu 2021 21 The Creature That Stumped Darwin 1 Eyl 2021 22 How Pollination Got Going Twice 16 Eyl 2021 23 How a Supervolcano Ignited an Evolutionary Debate 23 Eyl 2021 24 How a Mass Extinction Event Created the Amazon 29 Eyl 2021 25 When Mammals Only Went Out At Night 7 Eki 2021 
26 How Ancient Whales May Have Changed the Deep Ocean 21 Eki 2021 27 How Dinosaurs Coupled Up 28 Eki 2021 28 When It Was Too Hot for Leaves 17 Kas 2021 29 Why The Paleo Diet Couldn't Save The Neanderthals 2 Ara 2021 30 The Fossil Record In Your Mouth 9 Ara 2021 31 When Pterosaurs Walked 16 Ara 2021