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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 34 How Plankton Created A Bizarre Giant of the Seas
0.00 10 minutes At more than 2 meters long, Aegirocassis was not only the biggest radiodont ever, but it also may have been the biggest animal in the Early Ordovician. This bizarre marine giant may have only been possible, thanks to a major revolution among some of the tiniest organisms in the world.
