Eons

1 How Two Microbes Changed History 2 The Time Terror Birds Invaded 3 Untangling the Devil's Corkscrew 4 The Great Snake Debate 5 The Whole Saga of the Supercontinents 6 From the Cambrian Explosion to the Great Dying 7 How Sex Became a Thing 8 The Other Explosion You Should Know About 9 How the Turtle Got Its Shell 10 What a Dinosaur Looks Like Under a Microscope 11 The Most Useful Fossils in the World 12 Inside the Dinosaur Library 13 What Was the Ancestor of Everything? 14 How the Squid Lost Its Shell 15 How the Chalicothere Split In Two 16 The Age of Reptiles in Three Acts 17 The Weird, Watery Tale of Spinosaurus 18 From the Fall of Dinos to the Rise of Humans 19 That Time It Rained for Two Million Years 20 Why Triassic Animals Were Just the Weirdest 21 Where Did Viruses Come From? 22 When Fish First Breathed Air 23 How the T-Rex Lost Its Arms 24 FAQs From Our First Year 25 When Insects First Flew 26 The Mystery of the Eocene’s Lethal Lake 27 When Fish Wore Armor 28 When Birds Had Teeth 29 How Horses Took Over North America (Twice) 30 How a Supervolcano Made the Cenozoic’s Coolest Fossils 31 The Rise and Fall of the Bone-Crushing Dogs 32 Life, Sex & Death Among the Dire Wolves 33 When We First Walked 34 Did Raptorex Really Exist? 35 Can We Get DNA From Fossils? 36 When Giant Amphibians Reigned 37 Your Place in the Primate Family Tree 38 The Two People We're All Related To 39 When Rodents Rafted Across the Ocean 40 When Birds Stopped Flying 41 When Camels Roamed North America 42 How Sloths Went From the Seas to the Trees 43 When Sharks Swam the Great Plains 44 When Apes Conquered Europe 45 Why Megalodon (Definitely) Went Extinct