Eons - Season 2 Episode 28 When Birds Had Teeth
Season - Episode
6
Season 6 Jan 11, 2022
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6 - 1How our deadliest parasite turned to the dark side Jan 11, 2022 -
6 - 2Primates vs Snakes (An Evolutionary Arms Race) Jan 19, 2022
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6 - 3
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6 - 4How Vertebrates Got Teeth... And Lost Them Again Feb 08, 2022
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6 - 5How Horses Went From Food To Friends Feb 16, 2022
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6 - 6Why We Only Have Ten Toes (It's a Long Story) Feb 23, 2022
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6 - 7
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6 - 8Dire wolves aren’t wolves at all #shorts Mar 03, 2022
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6 - 9
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6 - 10
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6 - 11
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6 - 12
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6 - 13When a Giant Pterosaur Ruled the European Islands Mar 15, 2022
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6 - 14
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6 - 15
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6 - 16The Sudden Rise of the First Colossal Animal Mar 22, 2022
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6 - 17
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6 - 18The Extreme Hyenas That Didn't Last Mar 29, 2022
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6 - 19
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6 - 20
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6 - 21
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6 - 22
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6 - 23
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6 - 24How the Smallest Animal Got So Simple Apr 13, 2022
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6 - 25
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6 - 26Why Sour May Be The Oldest Taste Apr 20, 2022
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6 - 27The Ancient Human Species With A Missing Body Apr 27, 2022
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6 - 28Are there dinosaur fossils in space? #shorts May 02, 2022
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6 - 29Why don’t rabbits get really, really big? #shorts May 03, 2022
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6 - 30
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6 - 31When Ants Domesticated Fungi May 10, 2022
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6 - 32The Curious Case of the Cave Lion May 17, 2022 -
6 - 33Is This The Oldest Dad In The Fossil Record? May 26, 2022
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6 - 34
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6 - 35What is the most successful human species? #shorts May 31, 2022
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6 - 36
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6 - 37
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6 - 38What came first, the sabertooth or the cat? #shorts Jun 03, 2022
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6 - 39How To Build A Woolly Mammoth (But Should We?) Jun 08, 2022
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6 - 40
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6 - 41Giant Viruses Blur The Line Between Alive and Not Jun 29, 2022 -
6 - 42
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6 - 43
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6 - 44
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6 - 45When Giant Millipedes Reigned Jul 13, 2022 -
6 - 46How Plate Tectonics Transformed Los Angeles Jul 21, 2022 -
6 - 47Why Does Caffeine Exist? Jul 28, 2022 -
6 - 48
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6 - 49
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6 - 50
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6 - 51
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6 - 52Did An Ancient Pathogen Reshape Our Cells? Aug 11, 2022 -
6 - 53How Whale Evolution Kind Of Sucked Aug 18, 2022 -
6 - 54The Fungi That Turned Ants Into Zombies Aug 23, 2022 -
6 - 55Did you know that fossils can get sick? #shorts Aug 31, 2022
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6 - 56
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6 - 57
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6 - 58Did this animal poop cubes? Giant cubes? #shorts Sep 13, 2022
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6 - 59
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6 - 60
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6 - 61When did we start wearing clothes? #shorts Sep 17, 2022
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6 - 62
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6 - 63Where Did Water Come From? Sep 27, 2022
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6 - 64
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6 - 65
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6 - 66
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6 - 67
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6 - 68
5
Season 5 Jan 13, 2021
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5 - 1What Happened to the World's Biggest Beaver? Jan 13, 2021 -
5 - 2The Reign of the Hell Ants Jan 21, 2021 -
5 - 3The Pandemic That Lasted 15 Million Years Jan 28, 2021 -
5 - 4When We First Talked Feb 11, 2021 -
5 - 5The Return of Giant Skin-Shell Sea Turtles Feb 17, 2021 -
5 - 6The Genes We Lost Along the Way Feb 24, 2021 -
5 - 7Our Bizarre, Possibly Venomous, Relative Mar 10, 2021 -
5 - 8How Worm Holes Ended Wormworld Mar 18, 2021 -
5 - 9How Humans Became (Mostly) Right-Handed Mar 24, 2021 -
5 - 10How Chilis Got Spicy (and Why We Love the Burn) Apr 07, 2021
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5 - 11How To Survive the Little Ice Age Apr 20, 2021
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5 - 12When Crocs Thrived in the Seas Apr 29, 2021
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5 - 13When Trees Took Over the World May 12, 2021
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5 - 14How Weasels Got Skinny May 20, 2021
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5 - 15Where Are All The Squid Fossils? Jun 03, 2021
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5 - 16Did These Giant Sloths Poop Themselves to Death? Jul 14, 2021
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5 - 17The Traits That Spawned the Age of Mammals Jul 21, 2021
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5 - 18The Island of the Last Surviving Mammoths Jul 29, 2021
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5 - 19Where Are All the Medium-Sized Dinosaurs? Aug 12, 2021
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5 - 20How the Starfish Got Its Arms Aug 24, 2021
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5 - 21The Creature That Stumped Darwin Sep 01, 2021
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5 - 22How Pollination Got Going Twice Sep 16, 2021
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5 - 23How a Supervolcano Ignited an Evolutionary Debate Sep 23, 2021
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5 - 24How a Mass Extinction Event Created the Amazon Sep 29, 2021
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5 - 25When Mammals Only Went Out At Night Oct 07, 2021
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5 - 26How Ancient Whales May Have Changed the Deep Ocean Oct 21, 2021 -
5 - 27How Dinosaurs Coupled Up Oct 28, 2021
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5 - 28When It Was Too Hot for Leaves Nov 17, 2021
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5 - 29Why The Paleo Diet Couldn't Save The Neanderthals Dec 02, 2021
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5 - 30The Fossil Record In Your Mouth Dec 09, 2021
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5 - 31When Pterosaurs Walked Dec 16, 2021
4
Season 4 Jan 09, 2020
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4 - 1That Time the Mediterranean Sea Disappeared Jan 09, 2020
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4 - 2The Neanderthals That Taught Us About Humanity Jan 16, 2020
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4 - 3The Giant Dinosaur That Was Missing a Body Jan 28, 2020
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4 - 4How South America Made the Marsupials Feb 04, 2020
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4 - 5A Short Tale About Diplodocus' Long Neck Feb 11, 2020
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4 - 6When the Rainforests Collapsed Feb 19, 2020
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4 - 7How a Hot Planet Created the World's Biggest Snake Feb 27, 2020
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4 - 8When the Sahara Was Green Mar 10, 2020
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4 - 9When Penguins Went From The Sky To The Sea Mar 18, 2020
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4 - 10How the Egg Came First Mar 25, 2020
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4 - 11How Dogs (Eventually) Became Our Best Friends Mar 31, 2020
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4 - 12When a Billion Years Disappeared Apr 15, 2020
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4 - 13The Risky Paleo Diets of Our Ancestors Apr 22, 2020
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4 - 14
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4 - 15How Plants Caused the First Mass Extinction May 12, 2020
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4 - 16The Two Viruses That We’ve Had For Millions of Years May 20, 2020
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4 - 17How We Identified One of Earth’s Earliest Animals May 28, 2020
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4 - 18When Dinosaur Look-Alikes Ruled the Earth Jun 09, 2020
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4 - 19The World Before Plate Tectonics Jun 16, 2020
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4 - 20When Dinosaurs Chilled in the Arctic Jun 24, 2020
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4 - 21How the Walrus Got Its Tusks Jul 07, 2020
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4 - 22The Story of the Dino Stampede Jul 16, 2020
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4 - 23The Biggest Frog that Ever Lived Jul 23, 2020
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4 - 24The Dinosaur Who Was Buried at Sea Aug 05, 2020
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4 - 25How We Figured Out Fermentation Aug 13, 2020
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4 - 26The Oddest Couple in the Fossil Record Aug 20, 2020
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4 - 27How Ancient Art Captured Australian Megafauna Sep 02, 2020
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4 - 28The Sea Monster from the Andes Sep 10, 2020
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4 - 29When Rodents Had Horns Sep 15, 2020
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4 - 30The First and Last North American Primates Sep 30, 2020
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4 - 31How Plants Became Carnivores Oct 07, 2020
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4 - 32How Ankylosaurs Got Their Clubs Oct 13, 2020
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4 - 33Why Do Things Keep Evolving Into Crabs? Oct 28, 2020
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4 - 34How Plankton Created A Bizarre Giant of the Seas Nov 10, 2020
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4 - 35
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4 - 36How Humans Lost Their Fur Dec 02, 2020
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4 - 37When Lizards Took Over the World Dec 09, 2020
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4 - 38When the Earth Suddenly Stopped Warming Dec 17, 2020
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4 - 39The Triassic Reptile With "Two Faces" Dec 22, 2020
3
Season 3 Jan 08, 2019
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3 - 1When Humans Were Prey Jan 08, 2019
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3 - 2How Blood Evolved (Many Times) Jan 15, 2019
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3 - 3The Humans That Lived Before Us Jan 29, 2019
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3 - 4The Island of Shrinking Mammoths Feb 05, 2019
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3 - 5The Evolution of the Heart (A Love Story) Feb 13, 2019
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3 - 6How 7,000 Years of Epic Floods Changed the World Feb 27, 2019
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3 - 7The Island of Huge Hamsters and Giant Owls Mar 05, 2019
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3 - 8The Giant Bird That Got Lost in Time Mar 12, 2019
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3 - 9When We First Made Tools Mar 26, 2019
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3 - 10When Giant Scorpions Swarmed the Seas Apr 02, 2019
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3 - 11When We Tamed Fire Apr 09, 2019
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3 - 12The Mystery Behind the Biggest Bears of All Time Apr 23, 2019
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3 - 13The Croc That Ran on Hooves May 01, 2019
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3 - 14When We Took Over the World May 07, 2019
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3 - 15The Ghostly Origins of the Big Cats May 16, 2019
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3 - 16
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3 - 17The Hellacious Lives of the "Hell Pigs" Jun 05, 2019
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3 - 18How Evolution Works (And How We Figured It Out) Jun 11, 2019
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3 - 19When the Synapsids Struck Back Jun 19, 2019
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3 - 20When Ichthyosaurs Led a Revolution in the Seas Jun 25, 2019
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3 - 21When We Met Other Human Species Jul 09, 2019
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3 - 22How Volcanoes Froze the Earth (Twice) Jul 17, 2019
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3 - 23
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3 - 24When Giant Deer Roamed Eurasia Aug 07, 2019
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3 - 25Was This Dinosaur a Cannibal? Aug 14, 2019
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3 - 26The Missing Link That Wasn’t Aug 21, 2019
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3 - 27The Raptor That Made Us Rethink Dinosaurs Aug 28, 2019
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3 - 28When Bats Took Flight Sep 11, 2019
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3 - 29How Pterosaurs Got Their Wings Sep 18, 2019
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3 - 30When Giant Lemurs Ruled Madagascar Sep 25, 2019
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3 - 31When Antarctica Was Green Oct 03, 2019
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3 - 32The Case of the Dinosaur Egg Thief Oct 16, 2019
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3 - 33When Hobbits Were Real Oct 22, 2019
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3 - 34Were These Monsters Inspired by Fossils? Oct 29, 2019
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3 - 35How We Domesticated Cats (Twice) Nov 06, 2019
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3 - 36When Giant Hypercarnivores Prowled Africa Nov 19, 2019
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3 - 37Why Male Mammoths Lost the Game Nov 26, 2019
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3 - 38The Forgotten Story of the Beardogs Dec 12, 2019
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3 - 39The Fuzzy Origins of the Giant Panda Dec 17, 2019
2
Season 2 Jan 15, 2018
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2 - 1How Two Microbes Changed History Jan 15, 2018
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2 - 2The Time Terror Birds Invaded Jan 22, 2018
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2 - 3Untangling the Devil's Corkscrew Jan 29, 2018
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2 - 4The Great Snake Debate Feb 05, 2018
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2 - 5The Whole Saga of the Supercontinents Feb 12, 2018
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2 - 6From the Cambrian Explosion to the Great Dying Feb 20, 2018
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2 - 7How Sex Became a Thing Feb 26, 2018
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2 - 8The Other Explosion You Should Know About Mar 05, 2018
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2 - 9How the Turtle Got Its Shell Mar 12, 2018
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2 - 10What a Dinosaur Looks Like Under a Microscope Mar 19, 2018
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2 - 11The Most Useful Fossils in the World Mar 26, 2018
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2 - 12Inside the Dinosaur Library Apr 02, 2018
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2 - 13What Was the Ancestor of Everything? Apr 11, 2018
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2 - 14How the Squid Lost Its Shell Apr 17, 2018
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2 - 15How the Chalicothere Split In Two Apr 24, 2018
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2 - 16The Age of Reptiles in Three Acts May 02, 2018
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2 - 17The Weird, Watery Tale of Spinosaurus May 08, 2018
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2 - 18From the Fall of Dinos to the Rise of Humans May 16, 2018
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2 - 19That Time It Rained for Two Million Years May 22, 2018
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2 - 20Why Triassic Animals Were Just the Weirdest Jun 05, 2018
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2 - 21Where Did Viruses Come From? Jun 12, 2018
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2 - 22When Fish First Breathed Air Jun 19, 2018
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2 - 23How the T-Rex Lost Its Arms Jun 26, 2018
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2 - 24FAQs From Our First Year Jul 03, 2018
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2 - 25When Insects First Flew Jul 10, 2018
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2 - 26The Mystery of the Eocene’s Lethal Lake Jul 17, 2018
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2 - 27When Fish Wore Armor Jul 24, 2018
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2 - 28When Birds Had Teeth Aug 07, 2018
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2 - 29How Horses Took Over North America (Twice) Aug 14, 2018
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2 - 30
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2 - 31The Rise and Fall of the Bone-Crushing Dogs Aug 28, 2018
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2 - 32Life, Sex & Death Among the Dire Wolves Sep 06, 2018
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2 - 33When We First Walked Sep 11, 2018
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2 - 34Did Raptorex Really Exist? Sep 18, 2018
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2 - 35Can We Get DNA From Fossils? Oct 02, 2018
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2 - 36When Giant Amphibians Reigned Oct 09, 2018
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2 - 37Your Place in the Primate Family Tree Oct 16, 2018
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2 - 38The Two People We're All Related To Oct 23, 2018
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2 - 39When Rodents Rafted Across the Ocean Nov 06, 2018
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2 - 40When Birds Stopped Flying Nov 14, 2018
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2 - 41When Camels Roamed North America Nov 20, 2018
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2 - 42How Sloths Went From the Seas to the Trees Nov 28, 2018
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2 - 43When Sharks Swam the Great Plains Dec 04, 2018
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2 - 44When Apes Conquered Europe Dec 11, 2018
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2 - 45Why Megalodon (Definitely) Went Extinct Dec 19, 2018
1
Season 1 Jun 26, 2017
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1 - 1The Trouble With Trilobites Jun 26, 2017
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1 - 2When Did the First Flower Bloom? Jul 03, 2017
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1 - 3The Tully Monster & Other Problematic Creatures Jul 11, 2017
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1 - 4Stegosaurs: Tiny Brains & Thagomizers Jul 17, 2017
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1 - 5What Colors Were Dinosaurs? Jul 24, 2017
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1 - 6The Story of Saberteeth Jul 31, 2017
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1 - 7That Time Oxygen Almost Killed Everything Aug 07, 2017
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1 - 8The Biggest Thing That Ever Flew Aug 14, 2017
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1 - 9Dimetrodon: Our Most Unlikely Ancestor Aug 21, 2017
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1 - 10The Extinction That Never Happened Aug 28, 2017
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1 - 11The Strange Case of the Buzzsaw Jaws Sep 11, 2017
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1 - 12The Age of Giant Insects Sep 18, 2017
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1 - 13History's Most Powerful Plants Sep 26, 2017
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1 - 14How Did Dinosaurs Get So Huge? Oct 02, 2017
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1 - 15When The Earth Was Purple Oct 09, 2017
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1 - 16'Living Fossils' Aren't Really a Thing Oct 16, 2017
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1 - 17When Whales Walked Oct 23, 2017
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1 - 18An Illustrated History of Dinosaurs Oct 30, 2017
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1 - 19A Brief History of Geologic Time Nov 06, 2017
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1 - 20The Search for the Earliest Life Nov 20, 2017
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1 - 21The Facts About Dinosaurs & Feathers Nov 27, 2017
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1 - 22The Last Time the Globe Warmed Dec 04, 2017
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1 - 23What Happened to the World's Greatest Ape? Dec 11, 2017
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1 - 24When Giant Fungi Ruled Dec 18, 2017
0
Season 0 Jun 22, 2017
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0 - 1A Quick Introduction to Eons Jun 22, 2017
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0 - 2Eons Livestream Q&A Jan 08, 2018
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0 - 3Eons Is Evolving! Join Us on Patreon! Jun 18, 2018
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0 - 4Eons 1-Year Birthday Livestream!!!! Jun 26, 2018
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0 - 5National Fossil Day Livestream! Oct 14, 2020
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0 - 6Fossil Feud: Eons vs SciShow! Oct 13, 2021
Overview
Experts are still arguing over whether Archaeopteryx was a true bird, or a paravian dinosaur, or some other kind of dino. But regardless of what side you’re on, how did this fascinating, bird-like animal relate to today’s birds? It turns out its teeth were a clue that this story goes all the way back to what we now call the non-avian dinosaurs.
Year 2022
Studio PBS Digital Studios, YouTube
Director Hank Green
Crew
Popularity 11.8972
Language English
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