Eons 12:27 There's No Single Cradle of Humankind 10:24 The Second Time Sponges Took Over The World 11:34 That Time The Ocean Lost (Almost) All Its Oxygen 09:39 How Long Have We Been Caring For Each Other? 11:56 What Will Earth Be Like 300 Million Years From Now? 10:53 When Giant Amphibians Reigned 12:17 The Hazy Evolution of Cannabis 09:51 Are We All Actually Archaea? 08:46 Beans And Bees Gave Us Butterflies 08:59 Our Bizarre, Possibly Venomous, Relative 06:41 Untangling the Devil's Corkscrew 09:58 When Dinosaurs Chilled in the Arctic 10:15 How Chilis Got Spicy (and Why We Love the Burn) 08:32 The Ghostly Origins of the Big Cats 12:21 Our Most Mysterious Extinct Cousins 13:57 Why Is It So Hard to Tell the Sex of a Dinosaur? 09:39 The Sudden Rise of the First Colossal Animal 11:04 When It Was Too Hot for Leaves 13:12 Why Only Earth Has Fire 08:44 How a Mass Extinction Event Created the Amazon More results