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Season 6 Episode
- Season 4 That Time the Mediterranean Sea Disappeared
- Season 4 The Neanderthals That Taught Us About Humanity
- Season 4 The Giant Dinosaur That Was Missing a Body
- Season 4 How South America Made the Marsupials
- Season 4 A Short Tale About Diplodocus' Long Neck
- Season 4 When the Rainforests Collapsed
- Season 4 How a Hot Planet Created the World's Biggest Snake
- Season 4 When the Sahara Was Green
- Season 4 When Penguins Went From The Sky To The Sea
- Season 4 How the Egg Came First
- Season 4 How Dogs (Eventually) Became Our Best Friends
- Season 4 When a Billion Years Disappeared
- Season 4 The Risky Paleo Diets of Our Ancestors
- Season 4 How the Andes Mountains Might Have Killed a Bunch of Whales
- Season 4 How Plants Caused the First Mass Extinction
- Season 4 The Two Viruses That We’ve Had For Millions of Years
- Season 4 How We Identified One of Earth’s Earliest Animals
- Season 4 When Dinosaur Look-Alikes Ruled the Earth
- Season 4 The World Before Plate Tectonics
- Season 4 When Dinosaurs Chilled in the Arctic
- Season 4 How the Walrus Got Its Tusks
- Season 4 The Story of the Dino Stampede
- Season 4 The Biggest Frog that Ever Lived
- Season 4 The Dinosaur Who Was Buried at Sea
- Season 4 How We Figured Out Fermentation
- Season 4 The Oddest Couple in the Fossil Record
- Season 4 How Ancient Art Captured Australian Megafauna
- Season 4 The Sea Monster from the Andes
- Season 4 When Rodents Had Horns
- Season 4 The First and Last North American Primates
- Season 4 How Plants Became Carnivores
- Season 4 How Ankylosaurs Got Their Clubs
- Season 4 Why Do Things Keep Evolving Into Crabs?
- Season 4 How Plankton Created A Bizarre Giant of the Seas
- Season 4 The Rise and Fall of the Tallest Mammal to Walk the Earth
- Season 4 How Humans Lost Their Fur
- Season 4 When Lizards Took Over the World
- Season 4 When the Earth Suddenly Stopped Warming
- Season 4 The Triassic Reptile With "Two Faces"
Eons - Season 4 Episode 23 The Biggest Frog that Ever Lived
0.00 10 minutes Untangling the origins of Beelzebufo -- the giant frog that lived alongside the dinosaurs -- turns out to be one of the most bedeviling problems in the history of amphibians.
