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The Worst Episodes of Eons

Every episode of Eons ranked from worst to best. Explore the Worst Episodes of Eons!

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Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth. From the dawn of life in the Archaean Eon through the

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  1. #1 Worst Episode
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    Eons Season 1 Episode 2 - When Did the First Flower Bloom?
    0.0/10(0 votes)

    #1 - When Did the First Flower Bloom?

    S1:E2

    During the Cretaceous Period, dinosaurs were more diverse, more fierce, and more strange than ever. But something else was happening under the feet of the terrible lizards: for the first time in history, there were flowers.

    Director:Unknown
    Writer:Unknown

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  2. Eons Season 1 Episode 3 - The Tully Monster & Other Problematic Creatures
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    #2 - The Tully Monster & Other Problematic Creatures

    S1:E3

    There are animals in the fossil record that challenge some of our most basic ideas about what animals are supposed to look like. If there ever was a monster on this planet that was worthy of the name, it might have been the Tully Monster.

    Director:Unknown
    Writer:Unknown

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  3. Eons Season 1 Episode 4 - Stegosaurs: Tiny Brains & Thagomizers
    0.0/10(0 votes)

    #3 - Stegosaurs: Tiny Brains & Thagomizers

    S1:E4

    If you take it as a given that extinct dinosaurs were all weird and wonderful, then you gotta at least consider that Stegosaurus was one of the weirdest and wonderfulest.

    Director:Unknown
    Writer:Unknown

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  4. Eons Season 1 Episode 5 - What Colors Were Dinosaurs?
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    #4 - What Colors Were Dinosaurs?

    S1:E5

    We know a lot about dinosaurs but there’s one question that has plagued paleontologists for decades: what color were they?

    Director:Unknown
    Writer:Unknown

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  5. Eons Season 1 Episode 6 - The Story of Saberteeth
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    #5 - The Story of Saberteeth

    S1:E6

    Smilodon was a fearsome Ice Age cat, the size of a modern-day tiger, that had a pair of fangs nearly 18 centimeters long. But it was only the last and largest of the great sabertooths: ridiculously long canines had already been a trend for millions of years by the time Smilodon was prowling around. And you know what? Those giant teeth just might make a comeback.

    Director:Unknown
    Writer:Unknown

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  6. Eons Season 1 Episode 7 - That Time Oxygen Almost Killed Everything
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    #6 - That Time Oxygen Almost Killed Everything

    S1:E7

    What if we told you that there was a time when oxygen almost wiped out all life on Earth? 3 billion years ago, when the world was a place you’d never recognize, too much of a good thing almost ruined everything for everybody.

    Director:Unknown
    Writer:Unknown

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  7. Eons Season 1 Episode 8 - The Biggest Thing That Ever Flew
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    #7 - The Biggest Thing That Ever Flew

    S1:E8

    Today, we’re familiar with two types of flying vertebrates -- birds and bats. But over 66 million years ago, there was a giraffe-sized reptile that soared through the sky.

    Director:Unknown
    Writer:Unknown

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  8. Eons Season 1 Episode 9 - Dimetrodon: Our Most Unlikely Ancestor
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    #8 - Dimetrodon: Our Most Unlikely Ancestor

    S1:E9

    With its lizard-like appearance and that distinctive sail on it back, Dimetrodon is practically the mascot of the Palaeozoic Era, a time before flowers, birds, mammals, and even crocodiles. But if you take a close look at this sail-backed animal, you might see a little bit of yourself.

    Director:Unknown
    Writer:Unknown

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  9. Eons Season 1 Episode 10 - The Extinction That Never Happened
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    #9 - The Extinction That Never Happened

    S1:E10

    Natural history is full of living things that were long thought to have gone extinct only to show up again, alive and well. Paleontologists have a word for these kinds of organisms: They call them Lazarus taxa.

    Director:Unknown
    Writer:Unknown

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  10. Eons Season 1 Episode 11 - The Strange Case of the Buzzsaw Jaws
    0.0/10(0 votes)

    #10 - The Strange Case of the Buzzsaw Jaws

    S1:E11

    There are many fossils that challenge our ability to form even the most basic idea of how a living thing looked, or lived, or functioned. One of the longest-running of these mysteries involved a 270-million-year-old sea creature called Helicoprion that once swam the seas around the supercontinent of Pangea.

    Director:Unknown
    Writer:Unknown

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  11. Eons Season 1 Episode 12 - The Age of Giant Insects
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    #11 - The Age of Giant Insects

    S1:E12

    Insects outnumber humans by a lot and we only like to think we're in charge because we're bigger than they are. But insects and other arthropods weren’t always so small. About 315 million years ago during the Carboniferous Period, they were not only abundant: they were enormous.

    Director:Unknown
    Writer:Unknown

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  12. Eons Season 1 Episode 13 - History's Most Powerful Plants
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    #12 - History's Most Powerful Plants

    S1:E13

    Fossil fuels are made from the remains of extinct organisms that have been exposed to millions of years of heat and pressure. But in the case of coal, these organisms consisted largely of some downright bizarre plants that once covered the Earth, from Colorado to China.

    Director:Unknown
    Writer:Unknown

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  13. Eons Season 1 Episode 14 - How Did Dinosaurs Get So Huge?
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    #13 - How Did Dinosaurs Get So Huge?

    S1:E14

    Part of why we’re so fascinated with extinct dinosaurs it’s just hard for us to believe that animals that huge actually existed. And yet, they existed! From the Jurassic to the Cretaceous Periods, creatures as tall as a five-story building were shaking the Earth.

    Director:Unknown
    Writer:Unknown

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  14. Eons Season 1 Episode 15 - When The Earth Was Purple
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    #14 - When The Earth Was Purple

    S1:E15

    Besides the blue of the oceans, the dominant color of our planet, as we know it, is green. But imagine a time when the Earth looked a little … purple.

    Director:Unknown
    Writer:Unknown

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  15. Eons Season 1 Episode 16 - 'Living Fossils' Aren't Really a Thing
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    #15 - 'Living Fossils' Aren't Really a Thing

    S1:E16

    Crocodiles, horseshoe crabs and tuatara are animals that have persisted for millions of years, said to have gone unchanged since the days of the dinosaurs. But even the most ancient-looking organisms show us that evolution is always at work.

    Director:Unknown
    Writer:Unknown

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  16. Eons Season 1 Episode 17 - When Whales Walked
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    #16 - When Whales Walked

    S1:E17

    We know whales as graceful giants bound to the sea. But what if we told you there was actually a time when whales could walk.

    Director:Unknown
    Writer:Unknown

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  17. Eons Season 1 Episode 18 - An Illustrated History of Dinosaurs
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    #17 - An Illustrated History of Dinosaurs

    S1:E18

    Our image of dinosaurs has been constantly changing since naturalists started studying them about 350 years ago. Taken together, these pictures can tell us a whole lot about just how much we have learned. Let's explore the history of dinosaur science as seen through the history of dinosaur art.

    Director:Unknown
    Writer:Unknown

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  18. Eons Season 1 Episode 19 - A Brief History of Geologic Time
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    #18 - A Brief History of Geologic Time

    S1:E19

    By looking at the layers beneath our feet, geologists have been able to identify and describe crucial episodes in life’s history. These key events frame the chapters in the story of life on earth and the system we use to bind all these chapters together is the Geologic Time Scale.

    Director:Unknown
    Writer:Unknown

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  19. Eons Season 1 Episode 20 - The Search for the Earliest Life
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    #19 - The Search for the Earliest Life

    S1:E20

    More than 4 billion years ago, the crust of the Earth was still cooling and the oceans were only beginning to form. But in recent years, we’ve started to discover that, even in this hellish environment, life found a way.

    Director:Unknown
    Writer:Unknown

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  20. Eons Season 1 Episode 21 - The Facts About Dinosaurs & Feathers
    0.0/10(0 votes)

    #20 - The Facts About Dinosaurs & Feathers

    S1:E21

    Over the past 20 years, dinosaurs of all types and sizes have been found with some sort of fluff or even full-on plumage. These fuzzy discoveries have raised a whole batch of new questions so we're here to tell you everything we know about dinosaurs and feathers.

    Director:Unknown
    Writer:Unknown

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  21. Eons Season 1 Episode 22 - The Last Time the Globe Warmed
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    #21 - The Last Time the Globe Warmed

    S1:E22

    Imagine an enormous, lush rainforest teeming with life...in the Arctic. Well there was a time -- and not too long ago -- when the world warmed more than any human has ever seen. (So far)

    Director:Unknown
    Writer:Unknown

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  22. Eons Season 1 Episode 23 - What Happened to the World's Greatest Ape?
    0.0/10(0 votes)

    #22 - What Happened to the World's Greatest Ape?

    S1:E23

    Probably twice the size of a modern gorilla, Gigantopithecus is the greatest great-ape that ever was. And for us fellow primates, there are some lessons to be learned in how it lived, and why it disappeared.

    Director:Unknown
    Writer:Unknown

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  23. Eons Season 1 Episode 24 - When Giant Fungi Ruled
    0.0/10(0 votes)

    #23 - When Giant Fungi Ruled

    S1:E24

    420 million years ago, a giant feasted on the dead, growing slowly into the largest living thing on land. It belonged to an unlikely group of pioneers that ultimately made life on land possible -- the fungi.

    Director:Unknown
    Writer:Unknown

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  24. Eons Season 2 Episode 1 - How Two Microbes Changed History
    0.0/10(0 votes)

    #24 - How Two Microbes Changed History

    S2:E1

    What if I told you that, more than two billion years ago, some tiny living thing started to live inside another living thing … and never left? And now, the descendants of both of those things are in you?

    Director:Unknown
    Writer:Unknown

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  25. Eons Season 2 Episode 2 - The Time Terror Birds Invaded
    0.0/10(0 votes)

    #25 - The Time Terror Birds Invaded

    S2:E2

    About 5 million years ago, a new predator made its way from the south and onto the coastal plains of North America. It was a giant, flightless, carnivorous bird and came to be known by one of the coolest and most richly earned nicknames in all of paleontology: the terror bird.

    Director:Unknown
    Writer:Unknown

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Worst Episodes Summary

"When Did the First Flower Bloom?" is the worst rated episode of "Eons". It scored /10 based on 0 votes. Directed by Unknown and written by Unknown, it aired on 7/3/2017. This episode scored 0.0 points lower than the second lowest rated, "The Tully Monster & Other Problematic Creatures".