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The Best Episodes of Eons Season 3

Every episode of Eons Season 3 ranked from best to worst. Discover the Best Episodes of Eons Season 3!

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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 Fan Favorite
    Eons Season 3 Episode 1 - When Humans Were Prey
    0.0/10(0 votes)

    #1 - When Humans Were Prey

    S3:E1

    Not too long ago, our early human ancestors were under constant threat of attack from predators. And it turns out that this difficult chapter in our history may be responsible for the adaptations that allowed us to become so successful.

    Director:Unknown
    Writer:Unknown

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  2. Eons Season 3 Episode 2 - How Blood Evolved (Many Times)
    7.0/10(5 votes)

    #2 - How Blood Evolved (Many Times)

    S3:E2

    Blood is one of the most revolutionary features in our evolutionary history. Over hundreds of millions of years, the way in which blood does its job has changed over and over again. As a result, we animals have our familiar red blood. But also blue blood. And purple, and green, and even white.

    Director:Unknown
    Writer:Unknown

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  3. Eons Season 3 Episode 3 - The Humans That Lived Before Us
    0.0/10(0 votes)

    #3 - The Humans That Lived Before Us

    S3:E3

    As more and more fossil ancestors have been found, our genus has become more and more inclusive, incorporating more members that look less like us, Homo sapiens. By getting to know these other hominins--the ones who came before us--we can start to answer some big questions about what it essentially means to be human.

    Director:Unknown
    Writer:Unknown

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  4. Eons Season 3 Episode 4 - The Island of Shrinking Mammoths
    0.0/10(0 votes)

    #4 - The Island of Shrinking Mammoths

    S3:E4

    The mammoths fossils found on the Channel Islands off the coast of southern California are much smaller than their relatives found on the mainland. They were so small that they came to be seen as their own species. How did they get there? And why were they so small?

    Director:Unknown
    Writer:Unknown

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  5. Eons Season 3 Episode 5 - The Evolution of the Heart (A Love Story)
    0.0/10(0 votes)

    #5 - The Evolution of the Heart (A Love Story)

    S3:E5

    In order to understand where hearts came from, we have to go back to the earliest common ancestor of everything that has a heart. It took hundreds of millions of years, and countless different iterations of the same basic structure to lead to the heart that you have today.

    Director:Unknown
    Writer:Unknown

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  6. Eons Season 3 Episode 6 - How 7,000 Years of Epic Floods Changed the World
    0.0/10(0 votes)

    #6 - How 7,000 Years of Epic Floods Changed the World

    S3:E6

    Strange geologic landmarks in the Pacific Northwest are the lingering remains of a mystery that took nearly half a century to solve. These features turned out to be a result one of the most powerful and bizarre episodes in geologic history: this region experienced dozens of major, devastating floods over the course of more than 7,000 years.

    Director:Unknown
    Writer:Unknown

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  7. Eons Season 3 Episode 7 - The Island of Huge Hamsters and Giant Owls
    0.0/10(0 votes)

    #7 - The Island of Huge Hamsters and Giant Owls

    S3:E7

    Back in the late Miocene epoch, there was an island--or maybe a group of islands-- in the Mediterranean Sea that was populated with fantastic giant beasts. It’s a lesson in the very strange, but very real, powers of natural selection.

    Director:Unknown
    Writer:Unknown

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  8. Eons Season 3 Episode 8 - The Giant Bird That Got Lost in Time
    0.0/10(0 votes)

    #8 - The Giant Bird That Got Lost in Time

    S3:E8

    The California condor is the biggest flying bird in North America, a title that it has held since the Late Pleistocene Epoch. It's just one example of an organism that we share the planet with today that seems lost in time, out of place in our world.

    Director:Unknown
    Writer:Unknown

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  9. Eons Season 3 Episode 9 - When We First Made Tools
    0.0/10(0 votes)

    #9 - When We First Made Tools

    S3:E9

    The tools made by our human ancestors may not seem like much when you compare them to the screen you’re looking at right now but their creation represents a pivotal moment in the origin of technology and in the evolution of our lineage.

    Director:Unknown
    Writer:Unknown

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  10. Eons Season 3 Episode 10 - When Giant Scorpions Swarmed the Seas
    0.0/10(0 votes)

    #10 - When Giant Scorpions Swarmed the Seas

    S3:E10

    Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes. Over time, they developed a number of adaptations--from crushing claws to flattened tails for swimming. And some of them adapted by getting so big that they still hold the record as the largest arthropods of all time.

    Director:Unknown
    Writer:Unknown

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  11. Eons Season 3 Episode 11 - When We Tamed Fire
    0.0/10(0 votes)

    #11 - When We Tamed Fire

    S3:E11

    The ability to make and use fire has fundamentally changed the arc of our evolution. The bodies we have today were, in many ways, shaped by that time when we first tamed fire.

    Director:Unknown
    Writer:Unknown

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  12. Eons Season 3 Episode 12 - The Mystery Behind the Biggest Bears of All Time
    0.0/10(0 votes)

    #12 - The Mystery Behind the Biggest Bears of All Time

    S3:E12

    The short-faced bears turned out to be remarkably adaptable, undergoing radical changes to meet the demands of two changing continents. And yet, for reasons we don’t quite understand, their adaptability wasn’t enough to keep them from going extinct.

    Director:Unknown
    Writer:Unknown

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  13. Eons Season 3 Episode 13 - The Croc That Ran on Hooves
    0.0/10(0 votes)

    #13 - The Croc That Ran on Hooves

    S3:E13

    In the Eocene Epoch, there was a reptile that had teeth equipped for biting through flesh, its hind legs were a lot longer than its front legs and instead of claws, its toes were each capped with hooves. How did this living nightmare come to evolve?

    Director:Unknown
    Writer:Unknown

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  14. Eons Season 3 Episode 14 - When We Took Over the World
    0.0/10(0 votes)

    #14 - When We Took Over the World

    S3:E14

    From our deepest origins in Africa all the way to the Americas, by looking at the fossils and archaeological materials we have been able to trace the path our ancestors took during thee short window of time when we took over the world.

    Director:Unknown
    Writer:Unknown

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  15. Eons Season 3 Episode 15 - The Ghostly Origins of the Big Cats
    0.0/10(0 votes)

    #15 - The Ghostly Origins of the Big Cats

    S3:E15

    All of today’s big cat species evolved less than 11 million years ago and yet their evolutionary history remains an almost total mystery. But scientists have recently discovered a major clue about the origins of the big cats, one that could provide a whole new starting place for solving this puzzle.

    Director:Unknown
    Writer:Unknown

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  16. Eons Season 3 Episode 16 - The History of Climate Cycles (and the Woolly Rhino) Explained
    0.0/10(0 votes)

    #16 - The History of Climate Cycles (and the Woolly Rhino) Explained

    S3:E16

    Throughout the Pleistocene Epoch, the range of the woolly rhino grew and shrank in sync with global climate. So what caused the climate -- and the range of the woolly rhino -- to cycle back and forth between such extremes?

    Director:Unknown
    Writer:Unknown

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  17. Eons Season 3 Episode 17 - The Hellacious Lives of the "Hell Pigs"
    0.0/10(0 votes)

    #17 - The Hellacious Lives of the "Hell Pigs"

    S3:E17

    Despite the name, we don’t know where the so-called “hell pigs” belong in the mammalian family tree. They walked on hooves, like pigs do, but had longer legs, almost like deer. They had hunched backs, a bit like rhinos or bison. But as is often, if not always, the case, there is some evolutionary method to this anatomical madness.

    Director:Unknown
    Writer:Unknown

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  18. Eons Season 3 Episode 18 - How Evolution Works (And How We Figured It Out)
    0.0/10(0 votes)

    #18 - How Evolution Works (And How We Figured It Out)

    S3:E18

    As a scientific concept, evolution was revolutionary when it was first introduced. With the help of all three of our hosts and the Smithsonian National Museum of Natural History’s new Deep Time Hall, we’ll try to explain how evolution actually works and how we came to understand it.

    Director:Unknown
    Writer:Unknown

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  19. Eons Season 3 Episode 19 - When the Synapsids Struck Back
    0.0/10(0 votes)

    #19 - When the Synapsids Struck Back

    S3:E19

    Synapsids were the world’s first-ever terrestrial megafauna but the vast majority of these giants were doomed to extinction. However some lived on, keeping a low profile among the dinosaurs. And now our world is the way it is because of the time when the synapsids struck back.

    Director:Unknown
    Writer:Unknown

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  20. Eons Season 3 Episode 20 - When Ichthyosaurs Led a Revolution in the Seas
    0.0/10(0 votes)

    #20 - When Ichthyosaurs Led a Revolution in the Seas

    S3:E20

    The marine reptiles Ichthyosaurs arose after The Great Dying, which wiped out at least 90 percent of life in the oceans, changing the seas forever and triggering a new evolutionary arms race between predator and prey.

    Director:Unknown
    Writer:Unknown

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  21. Eons Season 3 Episode 21 - When We Met Other Human Species
    0.0/10(0 votes)

    #21 - When We Met Other Human Species

    S3:E21

    We all belong to the only group of hominins on the planet today. But we weren’t always alone. 100,000 years ago, Eurasia was home to other hominin species, some of which we know our ancestors met, and spent some quality time with.

    Director:Unknown
    Writer:Unknown

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  22. Eons Season 3 Episode 22 - How Volcanoes Froze the Earth (Twice)
    0.0/10(0 votes)

    #22 - How Volcanoes Froze the Earth (Twice)

    S3:E22

    Over 600 million years ago, sheets of ice coated our planet on both land and sea. How did this happen? And most importantly for us, why did the planet eventually thaw again? The evidence for Snowball Earth is written on every continent today.

    Director:Unknown
    Writer:Unknown

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  23. Eons Season 3 Episode 23 - How Earth's First, Unkillable Animals Saved the World
    0.0/10(0 votes)

    #23 - How Earth's First, Unkillable Animals Saved the World

    S3:E23

    They have survived every catastrophe and every mass extinction event that nature has thrown at them. And by being the little, filter-feeding, water-cleaning creatures that they are, sponges may have saved the world.

    Director:Unknown
    Writer:Unknown

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  24. Eons Season 3 Episode 24 - When Giant Deer Roamed Eurasia
    0.0/10(0 votes)

    #24 - When Giant Deer Roamed Eurasia

    S3:E24

    Megaloceros was one of the largest members of the deer family ever to walk the Earth. The archaeological record is full of evidence that our ancestors lived alongside and interacted with these giant mammals for millennia. But what happened when they did interact, when humans met this megafauna?

    Director:Unknown
    Writer:Unknown

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  25. Eons Season 3 Episode 25 - Was This Dinosaur a Cannibal?
    0.0/10(0 votes)

    #25 - Was This Dinosaur a Cannibal?

    S3:E25

    Paleontologists have spent the better part of two decades debating whether Coelophysis ate its own kind. It turns out, the evidence that scientists have had to study in order to answer that question includes some of the strangest and grossest fossils that any expert would ever get to see.

    Director:Unknown
    Writer:Unknown

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Season 3 Ratings Summary

"When Humans Were Prey" is the best rated episode of "Eons" season 3. It scored /10 based on 0 votes. Directed by Unknown and written by Unknown, it aired on 1/8/2019. This episode is rated 7.0 points higher than the second-best, "How Blood Evolved (Many Times)".