Eons (2017) Web Series — Cast, Story & Where to Watch | MovieLinkBD

Eons (2017) is a documentary web series in English. On New MovieLinkBD: full story, cast, ratings, season & episode guide, official trailer and where to watch Eons online in HD.

Eons — Storyline

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 Mesozoic Era — the so-called “Age of Dinosaurs” — right up to the end of the most recent Ice Age. The evolutionary history of mammals including humans and other modern species is explored with these amazing paleontology experts.

Cast & Crew

• Created by: Hank Green
• Starring: Kallie Moore, Blake de Pastino, Michelle Barboza-Ramirez

Eons — Series Details

Eons — Episode Guide

Season 2017

• E1: The Trouble With Trilobites (2017-06-26) — Trilobites are famous not just because they were so beautifully functional, or because they happened to preserve so well. They’re known the world over because they were everywhere!
• E2: When Did the First Flower Bloom? (2017-07-03) — 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
• E3: The Tully Monster & Other Problematic Creatures (2017-07-11) — 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
• E4: Stegosaurs: Tiny Brains & Thagomizers (2017-07-17) — 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.
• E5: What Colors Were Dinosaurs? (2017-07-24) — We know a lot about dinosaurs but there’s one question that has plagued paleontologists for decades: what color were they?
• E6: The Story of Saberteeth (2017-07-31) — 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 sabertoo
• E7: That Time Oxygen Almost Killed Everything (2017-08-07) — 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
• E8: The Biggest Thing That Ever Flew (2017-08-14) — 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.
• E9: Dimetrodon: Our Most Unlikely Ancestor (2017-08-21) — 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 cr
• E10: The Extinction That Never Happened (2017-08-28) — 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
• E11: The Strange Case of the Buzzsaw Jaws (2017-09-11) — 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 myster
• E12: The Age of Giant Insects (2017-09-18) — 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
• E13: History's Most Powerful Plants (2017-09-26) — 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 lar
• E14: How Did Dinosaurs Get So Huge? (2017-10-02) — 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 Cre
• E15: When The Earth Was Purple (2017-10-09) — 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.
• E16: 'Living Fossils' Aren't Really a Thing (2017-10-16) — 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 ancien
• E17: When Whales Walked (2017-10-23) — 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.
• E18: An Illustrated History of Dinosaurs (2017-10-30) — 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 h
• E19: A Brief History of Geologic Time (2017-11-06) — 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 o
• E20: The Search for the Earliest Life (2017-11-20) — 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 thi
• E21: The Facts About Dinosaurs & Feathers (2017-11-27) — 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 q
• E22: The Last Time the Globe Warmed (2017-12-04) — 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. (S
• E23: What Happened to the World's Greatest Ape? (2017-12-11) — 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 liv
• E24: When Giant Fungi Ruled (2017-12-18) — 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

Season 2018

• E1: How Two Microbes Changed History (2018-01-15) — 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 t
• E2: The Time Terror Birds Invaded (2018-01-22) — 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 know
• E3: Untangling the Devil's Corkscrew (2018-01-29) — In the late 1800s, paleontologists in Nebraska found huge coils of hardened sand stuck deep in the earth. Local ranchers called them Devil's Corkscrews and scientists called them D
• E4: The Great Snake Debate (2018-02-05) — 90 million years ago, an ancient snake known as Najash had…legs. It is by no means the only snake to have limbs either. But what’s even stranger: we’re not at all sure where it c
• E5: The Whole Saga of the Supercontinents (2018-02-12) — The study of natural history is the study of how the world has changed but Earth itself is in a constant state of flux — because the ground beneath your feet is always moving. So
• E6: From the Cambrian Explosion to the Great Dying (2018-02-20) — The first era of our current eon, the Paleozoic Era, is probably the most deceptively fascinating time in Earth’s history. With near constant revolutions in life, punctuated by cat
• E7: How Sex Became a Thing (2018-02-26) — We don’t know which living thing was the very first to arrive at the totally revolutionary process that is sexual reproduction but we can follow the history of how (and why) sex be
• E8: The Other Explosion You Should Know About (2018-03-05) — Fossils found around the world suggest that multi-cellular life was not only present before the Cambrian Explosion, it was much more elaborate and diverse than anyone thought. This
• E9: How the Turtle Got Its Shell (2018-03-12) — Where did turtles come from? And how did the they get their shells? The answers to these questions would eventually cause scientists to rethink the entire history of reptile evolut
• E10: What a Dinosaur Looks Like Under a Microscope (2018-03-19) — We traveled to Bozeman, Montana to meet with Dr. Ellen-Thérèse Lamm who explores ancient life by studying it at the cellular level. Kallie and Dr. Lamm discuss how she does this, a
• E11: The Most Useful Fossils in the World (2018-03-26) — For decades, one of the most abundant kinds of fossils on Earth, numbering in the millions of specimens, was a mystery to paleontologists. But geologists discovered that these myst
• E12: Inside the Dinosaur Library (2018-04-02) — We're back in Bozeman, Montana this week talking to Amy Atwater, Collections Manager at the Museum of the Rockies. MOR has among the largest collections of North American dinosaurs
• E13: What Was the Ancestor of Everything? (2018-04-11) — The search for our origins go back to a single common ancestor — one that remains shrouded in mystery. It’s the ancestor of everything we know and today scientists call it the las
• E14: How the Squid Lost Its Shell (2018-04-17) — The ancestors of modern, squishy cephalopods like the octopus and the squid all had shells. In ancient times, their shell was their greatest asset but it eventually proved to be th
• E15: How the Chalicothere Split In Two (2018-04-24) — Two extinct relatives of horses and rhinos are closely related to each other but have strikingly different body plans. How did two of the same kind of animal, living in the same pl
• E16: The Age of Reptiles in Three Acts (2018-05-02) — Reptiles emerged from the Paleozoic as humble creatures, but in time, they grew to become some of the largest forms of life ever to stomp, swim, and soar across the planet. This Ag
• E17: The Weird, Watery Tale of Spinosaurus (2018-05-08) — In 1912, a fossil collector discovered some strange bone fragments in the eerie, beautiful Cretaceous Bahariya rock formation of Egypt. Eventually, that handful of fossil fragments
• E18: From the Fall of Dinos to the Rise of Humans (2018-05-16) — After taking you on a journey through geologic time, we've arrived at the Cenozoic Era. Most of the mammals and birds that you can think of appeared during this era but perhaps mor
• E19: That Time It Rained for Two Million Years (2018-05-22) — At the beginning of the Triassic Period, with the continents locked together from pole-to-pole in the supercontinent of Pangea, the world is hot, flat, and very, very dry. But then
• E20: Why Triassic Animals Were Just the Weirdest (2018-06-05) — The Triassic was full of creatures that look a lot like other, more modern species, even though they’re not closely related at all. The reason for this has to do with how evolution
• E21: Where Did Viruses Come From? (2018-06-12) — There are fossils of viruses, of sorts, preserved in the DNA of the hosts that they’ve infected. Including you. This molecular fossil trail can help us understand where viruses cam
• E22: When Fish First Breathed Air (2018-06-19) — 385 million years ago, a group of fish would undertake one of the most important journeys in the history of life and become the first vertebrates to live on dry ground. But first,
• E23: How the T-Rex Lost Its Arms (2018-06-26) — Tyrannosaurus rex was big, Tyrannosaurus rex was vicious, and Tyrannosaurus rex had tiny arms. The story of how T-Rex lost its arms is, itself, pretty simple. But the story of why
• E24: FAQs From Our First Year (2018-07-03) — Over the first season of PBS Eons, we’ve explored the history of Earth from the very origins of life right up to the Cenozoic Era that we’re in now. To celebrate our first annivers
• E25: When Insects First Flew (2018-07-10) — Insects were the first animals to ever develop the ability to fly, and, arguably, they did it the best. But this development was so unusual that scientists are still/working on, an
• E26: The Mystery of the Eocene’s Lethal Lake (2018-07-17) — In 1800s, miners began working in exposed deposits of mud near the town of Messel, Germany. They were extracting oil from the rock and along with the oil, they found beautifully pr
• E27: When Fish Wore Armor (2018-07-24) — 420 million years ago, some fish were more medieval. They wore armor, sometimes made of big plates, and sometimes made of interlocking scales. But that armor may actually have serv
• E28: When Birds Had Teeth (2018-08-07) — 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 fascin
• E29: How Horses Took Over North America (Twice) (2018-08-14) — The ancestors of modern horses became so successful that they spread all over the world, to Europe, Asia, South America, and Africa. But in their native range of North America, the
• E30: How a Supervolcano Made the Cenozoic’s Coolest Fossils (2018-08-22) — One of the most dynamic, transformative, and potentially dangerous features in North America is also responsible for some of the continent’s most amazing fossil deposits. It’s a su
• E31: The Rise and Fall of the Bone-Crushing Dogs (2018-08-28) — A huge and diverse subfamily of dogs, the bone-crushers patrolled North America for more than thirty million years, before they disappeared in the not-too-distant past. So what hap
• E32: Life, Sex & Death Among the Dire Wolves (2018-09-06) — This is not a Game of Thrones fan fiction episode. Dire wolves were real! And thousands of them died in the same spot in California. Their remains have taught us volumes about how
• E33: When We First Walked (2018-09-11) — Fossilized footprints have proved that human ancestors were already striding across the landscape 3.6 million years ago. But who started them on that path? What species pioneered t
• E34: Did Raptorex Really Exist? (2018-09-18) — Paleontologists have been studying and drawing totally different conclusions about the fossil LH PV18 for almost a decade. Is it just one of many specimens of a theropod called Tar
• E35: Can We Get DNA From Fossils? (2018-10-02) — In 1993, scientists cracked open a piece of amber, took out the body of an ancient weevil, and sampled its DNA. Or, at least, so we thought. It took another few decades of research
• E36: When Giant Amphibians Reigned (2018-10-09) — Temnospondyls were a huge group of amphibians that existed for 210 million years. And calling them ‘diverse’ would be putting it mildly. Yet in the end, two major threats would pus
• E37: Your Place in the Primate Family Tree (2018-10-16) — Purgatorius, a kind of mammal called a plesiadapiform, might’ve been one of your earliest ancestors. But how did we get from a mouse-sized creature that looked more like a squirrel
• E38: The Two People We're All Related To (2018-10-23) — Due to an odd quirk of genetics and some unique evolutionary circumstances, two humans who lived at different times in the distant past managed to pass on a very small fraction of
• E39: When Rodents Rafted Across the Ocean (2018-11-06) — The best evidence we have suggests that, while Caviomorpha originated in South America, they came from ancestors in Africa, over 40 million years ago. So how did they get there?
• E40: When Birds Stopped Flying (2018-11-14) — Ratites have spread to Africa, Australia, New Zealand, and South America. And there are fossils of Ratites in Europe, Asia, and North America too. That’s a lot of ground to cover f
• E41: When Camels Roamed North America (2018-11-20) — Camels are famous for adaptations that have allowed them to flourish where most other large mammals would perish. But their story begins over 40 million years ago in North America,
• E42: How Sloths Went From the Seas to the Trees (2018-11-28) — The story of sloths is one of astounding ecological variability, with some foraging in the seas, others living underground, and others still hiding from predators in towering cliff
• E43: When Sharks Swam the Great Plains (2018-12-04) — If you’ve ever been to, or lived in, or even flown over the central swath of North America, then you’ve seen the remnants of what was a uniquely fascinating environment. Scientists
• E44: When Apes Conquered Europe (2018-12-11) — Today, our closest evolutionary relatives, the apes, live only in small pockets of Africa and Asia. But back in the Miocene epoch, apes occupied all of Europe. Why aren’t there wil
• E45: Why Megalodon (Definitely) Went Extinct (2018-12-19) — For more than 10 million years, Megalodon was at the top of its game as the oceans’ apex predator…until 2.6 million years ago, when it went extinct. So, what happened to the larg

Season 2019

• E1: When Humans Were Prey (2019-01-08) — 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
• E2: How Blood Evolved (Many Times) (2019-01-15) — 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
• E3: The Humans That Lived Before Us (2019-01-29) — 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
• E4: The Island of Shrinking Mammoths (2019-02-05) — 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 cam
• E5: The Evolution of the Heart (A Love Story) (2019-02-13) — 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 countle
• E6: How 7,000 Years of Epic Floods Changed the World (2019-02-27) — 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
• E7: The Island of Huge Hamsters and Giant Owls (2019-03-05) — 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 ver
• E8: The Giant Bird That Got Lost in Time (2019-03-12) — 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
• E9: When We First Made Tools (2019-03-26) — 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 o
• E10: When Giant Scorpions Swarmed the Seas (2019-04-02) — 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
• E11: When We Tamed Fire (2019-04-09) — 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.
• E12: The Mystery Behind the Biggest Bears of All Time (2019-04-23) — 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 understa
• E13: The Croc That Ran on Hooves (2019-05-01) — 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 e
• E14: When We Took Over the World (2019-05-07) — 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
• E15: The Ghostly Origins of the Big Cats (2019-05-16) — 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
• E16: The History of Climate Cycles (and the Woolly Rhino) Explained (2019-05-30) — 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 c
• E17: The Hellacious Lives of the "Hell Pigs" (2019-06-05) — 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. The
• E18: How Evolution Works (And How We Figured It Out) (2019-06-11) — 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
• E19: When the Synapsids Struck Back (2019-06-19) — 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
• E20: When Ichthyosaurs Led a Revolution in the Seas (2019-06-25) — 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
• E21: When We Met Other Human Species (2019-07-09) — 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 ou
• E22: How Volcanoes Froze the Earth (Twice) (2019-07-17) — 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 ev
• E23: How Earth's First, Unkillable Animals Saved the World (2019-07-30) — 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
• E24: When Giant Deer Roamed Eurasia (2019-08-07) — 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 interacte
• E25: Was This Dinosaur a Cannibal? (2019-08-14) — 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 an
• E26: The Missing Link That Wasn’t (2019-08-21) — The myth of the Missing Link–the idea that there must be a specimen that partly resembles an ape but also partly resembles a modern human–is persistent. But the reality is that t
• E27: The Raptor That Made Us Rethink Dinosaurs (2019-08-28) — In 1964, a paleontologist named John Ostrom unearthed some fascinating fossils from the mudstone of Montana. Its discovery set the stage for what’s known today as the Dinosaur Rena
• E28: When Bats Took Flight (2019-09-11) — Bats pretty much appear in the fossil record as recognizable, full-on, flying bats. And they show up on all of the continents, except Antarctica, around the same time. So where did
• E29: How Pterosaurs Got Their Wings (2019-09-18) — When pterosaurs first took flight, you could say that it marked the beginning of the end for the winged reptiles. Because, strangely enough, the power of flight — and the changes
• E30: When Giant Lemurs Ruled Madagascar (2019-09-25) — Just a few thousand years ago, the island of Madagascar was inhabited by giant lemurs. How did such a diverse group of primates evolve in the first place, and how did they help sha
• E31: When Antarctica Was Green (2019-10-03) — Before the start of the Eocene Epoch about 56 million years ago–Antarctica was still joined to both Australia and South America. And it turns out that a lot of what we recognize a
• E32: The Case of the Dinosaur Egg Thief (2019-10-16) — Paleontologists found a small theropod dinosaur skull right on top of a nest of eggs that were believed to belong to a plant-eating dinosaur. Instead of being the nest robbers that
• E33: When Hobbits Were Real (2019-10-22) — Its discoverers named it Homo floresiensis, but it’s often called “the hobbit” for its short stature and oddly proportioned feet. And it’s been at the center of a major controversy
• E34: Were These Monsters Inspired by Fossils? (2019-10-29) — People have been discovering the traces and remains of prehistoric creatures for thousands of years. And they’ve also probably been telling stories about fantastic beasts since lan
• E35: How We Domesticated Cats (Twice) (2019-11-06) — A 9,500 year old burial in Cyprus represents some of the oldest known evidence of human/cat companionships anywhere in the world. But when did this close relationship between human
• E36: When Giant Hypercarnivores Prowled Africa (2019-11-19) — These hyaenodonts gave the world some of its largest terrestrial, carnivorous mammals ever known. And while these behemoths were the apex predators of their time, they were no matc
• E37: Why Male Mammoths Lost the Game (2019-11-26) — Woolly mammoths, our favorite ice age proboscidean, disappeared from Europe and North America at the end of the last ice age, about 10,000 years ago. Today, we’ve teamed up with Ti
• E38: The Forgotten Story of the Beardogs (2019-12-12) — Because of their strange combination of bear-like and dog-like traits, they’re sometimes confusingly called the beardogs. And even though you’ve never met one of these animals, the
• E39: The Fuzzy Origins of the Giant Panda (2019-12-17) — How does a bear — which is a member of the order Carnivora — evolve into an herbivore? Despite how it looks, nothing about the history of the giant panda is black and white.

Season 2020

• E1: That Time the Mediterranean Sea Disappeared (2020-01-09) — How could a body of water as big as the Mediterranean just…disappear? It would take decades and more than 1,000 research studies to even start to figure out the cause — or cause
• E2: The Neanderthals That Taught Us About Humanity (2020-01-16) — Throughout the first half of the 20th century, Neandertals were thought to have been…primitive. Unintelligent, hunched-over cavemen, for lack of a better word. But the discoveries
• E3: The Giant Dinosaur That Was Missing a Body (2020-01-28) — From end to end, its forelimbs alone measured an incredible 2.4 meters long and were tipped with big, comma-shaped claws. But other than its bizarre arms, very little material from
• E4: How South America Made the Marsupials (2020-02-04) — Throughout the Cenozoic Era — the era we’re in now — marsupials and their metatherian relatives flourished all over South America, filling all kinds of ecological niches and radi
• E5: A Short Tale About Diplodocus' Long Neck (2020-02-11) — Long necks gave sauropods a huge advantage when it came to food, but not in the way you think. And this benefit would allow them to become the biggest terrestrial animals of all ti
• E6: When the Rainforests Collapsed (2020-02-19) — The Carboniferous Rainforest Collapse set the stage for a takeover that would be a crucial turning point in the history of terrestrial animal life. If it weren’t for that time when
• E7: How a Hot Planet Created the World's Biggest Snake (2020-02-27) — About 59 million years ago, the largest animal lurking in the ancient forests of Colombia by far was Titanoboa – the largest snake ever known. It’s only been in the past few years
• E8: When the Sahara Was Green (2020-03-10) — The climate of the Sahara was completely different thousands of years ago. And we’re not talking about just a few years of extra rain. We’re talking about a climate that was so wet
• E9: When Penguins Went From The Sky To The Sea (2020-03-18) — Today, we think of penguins as small-ish, waddling, tuxedo-birds. But they evolved from a flying ancestor, were actual giants for millions of years, and some of them were even dres
• E10: How the Egg Came First (2020-03-25) — The story of the egg spans millions of years, from the first vertebrates that dared to venture onto land to today’s mammals, including the platypus, and of course birds. Like chick
• E11: How Dogs (Eventually) Became Our Best Friends (2020-03-31) — We’re still figuring out the details, but most scientists agree that it took thousands of years of interactions to develop our deep bond with dogs. When did they first become domes
• E12: When a Billion Years Disappeared (2020-04-15) — In some places, the rocks below the Great Unconformity are about 1.2 billion years older than those above it. This missing chapter in Earth’s history might be linked to a fracturin
• E13: The Risky Paleo Diets of Our Ancestors (2020-04-22) — We can track our history of eating just about anything back through the fossil record and see the impact it’s had on our evolution. Throughout time, part of the secret to our succe
• E14: How the Andes Mountains Might Have Killed a Bunch of Whales (2020-04-29) — At a site known as Cerro Ballena or Whale Hill, there are more than 40 skeletons of marine mammals — a graveyard of ocean life dating back 6.5 million to 9 million years ago, in t
• E15: How Plants Caused the First Mass Extinction (2020-05-12) — In the middle of the Cambrian, life on land was about to get a little more crowded. And those newcomers would end up changing the world. The arrival of plants on land would make th
• E16: The Two Viruses That We’ve Had For Millions of Years (2020-05-20) — There’s one kind of herpesvirus that’s specific to one species of primate, and each virus split off from the herpesvirus family tree when the primate split off from its own tree. B
• E17: How We Identified One of Earth’s Earliest Animals (2020-05-28) — Scientists had no idea what type of organisms the life forms of the Ediacaran were—lichen, colonies of bacteria, fungi or something else. It turns out, the key to solving the puzzl
• E18: When Dinosaur Look-Alikes Ruled the Earth (2020-06-09) — There were a huge number of croc-like animals that flourished during the Triassic Period. Dinosaurs had just arrived on the scene but it was these animals that truly ruled the Eart
• E19: The World Before Plate Tectonics (2020-06-16) — There was a time in Earth’s history that was so stable, geologists once called it the Boring Billion. But the fact is, this period was anything but boring. In fact, it set the stag
• E20: When Dinosaurs Chilled in the Arctic (2020-06-24) — All told, the Arctic in the Cretaceous Period was a rough place to live, especially in winter. And yet, the fossils of many kinds of dinosaurs have been discovered there. So how we
• E21: How the Walrus Got Its Tusks (2020-07-07) — The rise and fall of ancient walruses, and how modern ones got their tusks, is a story that spans almost 20 million years. And while there are parts of the story that we’re still t
• E22: The Story of the Dino Stampede (2020-07-16) — To try to solve the puzzle of Lark Quarry, experts have turned to a special subfield of paleontology — paleoichnology, or the study of trace fossils — to reconstruct exactly what
• E23: The Biggest Frog that Ever Lived (2020-07-23) — 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.
• E24: The Dinosaur Who Was Buried at Sea (2020-08-05) — Paleontologists have been studying these dinosaurs since the 1830s, but nobody had ever found a specimen like Borealopelta before. The key to all of this exceptional preservation w
• E25: How We Figured Out Fermentation (2020-08-13) — Thanks to a recent adaptation, instead of getting sick from the boozy, fermented fruits, one of our primate ancestors could digest them safely, and get more calories at the same ti
• E26: The Oddest Couple in the Fossil Record (2020-08-20) — To figure out how Thrinaxodon and Broomistega became entombed together, scientists looked at the burrow itself, along with their fossilized bones. And it looks like their luck ran
• E27: How Ancient Art Captured Australian Megafauna (2020-09-02) — Beneath layers of rock art are drawings of animals SO strange that, for a long time, some anthropologists thought they could only have been imagined. But what if these animals real
• E28: The Sea Monster from the Andes (2020-09-10) — In 1977, a farmer was plowing his field on a plateau high in the Andes mountains when he stumbled upon a giant fossilized skeleton. How did this giant marine reptile end up high in
• E29: When Rodents Had Horns (2020-09-15) — These odd rodents belong to a genus known as Ceratogaulus, but they’re more commonly called horned gophers, because, you guessed it, they had horns. And it turns out the horns prob
• E30: The First and Last North American Primates (2020-09-30) — Early primates not only lived in North America — our primate family tree actually originated here! So what happened to those early relatives of ours?
• E31: How Plants Became Carnivores (2020-10-07) — How and why does botanical carnivory keep evolving? It turns out that when any of the basic things that most plants need aren’t there, some plants can adapt in unexpected ways to m
• E32: How Ankylosaurs Got Their Clubs (2020-10-13) — While clubs are practically synonymous with ankylosaurs, we’ve only started to get to the bottom of how they worked and how this unusual anatomy developed in the first place.
• E33: Why Do Things Keep Evolving Into Crabs? (2020-10-28) — For some reason, animals keep evolving into things that look like crabs, independently, over and over again. What is it about the crab’s form that makes it so evolutionarily succes
• E34: How Plankton Created A Bizarre Giant of the Seas (2020-11-10) — 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 ma
• E35: The Rise and Fall of the Tallest Mammal to Walk the Earth (2020-11-19) — It arose from rhino ancestors that were a lot smaller, but Paraceratherium would take a different evolutionary path. Believe it or not, it actually became so big that it probably g
• E36: How Humans Lost Their Fur (2020-12-02) — We’re the only primate without a coat of thick fur. It turns out that this small change in our appearance has had huge consequences for our ability to regulate our body temperature
• E37: When Lizards Took Over the World (2020-12-09) — Lizards are incredibly widespread and diverse but it took them a long time to get to where they are now. Because they used to face some pretty stiff competition from a group of liz
• E38: When the Earth Suddenly Stopped Warming (2020-12-17) — For decades, scientists have been studying the cause of the Younger Dryas, and trying to figure out if something like it could happen again. And it turns out that what caused this
• E39: The Triassic Reptile With "Two Faces" (2020-12-22) — Figuring out what this creature’s face actually looked like would take paleontologists years. But understanding this weird animal can help us shine a light on at least one way for

Season 2021

• E1: What Happened to the World's Biggest Beaver? (2021-01-13) — It’s important to us that you understand how big this beaver was. Just like modern beavers, it was semiaquatic — it lived both on the land and in the water. The difference is that
• E2: The Reign of the Hell Ants (2021-01-21) — This ancient species had the same six legs and segmented body that we’d recognize from an ant today. But it also had a huge, scythe-like jaw and a horn coming out of its head. This
• E3: The Pandemic That Lasted 15 Million Years (2021-01-28) — Our DNA holds evidence of a huge, ancient pandemic, one that touched many different species, spanned the globe, and lasted for more than 15 million years.
• E4: When We First Talked (2021-02-11) — The evolution of our ability to speak is its own epic saga and it’s worth pausing to appreciate that. It’s taken several million years to get to this moment where we can tell you a
• E5: The Return of Giant Skin-Shell Sea Turtles (2021-02-17) — The biggest turtle ever described wasn’t an ancestor of today’s leatherback turtles or any other living sea turtles. But it looks like there are some things about being a giant, sk
• E6: The Genes We Lost Along the Way (2021-02-24) — Our DNA holds thousands of dead genes and we’ve only just begun to unravel their stories. But one thing is already clear: we’re not just defined by the genes that we’ve gained over
• E7: Our Bizarre, Possibly Venomous, Relative (2021-03-10) — It's possible Euchambersia possessed venom about 20 million years before the first lizards and over 150 million years before the first snakes evolved. We’ve teamed up Sarah Suta fr
• E8: How Worm Holes Ended Wormworld (2021-03-18) — Elongated tubes, flat ribbons, and other “worm-like” body plans were so varied and abundant that a part of the Ediacaran is sometimes known as Wormworld. But in the end, the ancien
• E9: How Humans Became (Mostly) Right-Handed (2021-03-24) — No other placental mammal that we know of prefers one side of the body so consistently, not even our closest primate relatives. But being right-handed may have deep evolutionary ro
• E10: How Chilis Got Spicy (and Why We Love the Burn) (2021-04-07) — Today, chilis are the most widely cultivated spice crop in the world – grown everywhere from their native home in the Americas to Europe, Africa, and Asia. But how and why did chil
• E11: How To Survive the Little Ice Age (2021-04-20) — Nunalleq, a village in what’s today southwest Alaska, seemed to have thrived during the Little Ice Age. How did this village manage to survive and prosper during this time period?
• E12: When Crocs Thrived in the Seas (2021-04-29) — While dinosaurs were dominating the land, the metriorhynchids were thriving in the seas. But taking that plunge wasn’t easy because it takes a very special set of traits to fully d
• E13: When Trees Took Over the World (2021-05-12) — 420 million years ago, the forest floor of what's now New York was covered with a plant that didn’t look like a tree at all, except its roots were made of wood. Instead of looking
• E14: How Weasels Got Skinny (2021-05-20) — Weasels have an extreme body plan that may push the boundaries of what’s metabolically possible. So when and how did this happen? Why'd the weasels get so skinny?
• E15: Where Are All The Squid Fossils? (2021-06-03) — It might surprise you but cephalopods have a pretty good fossil record, with one major exception. If squids were swimming around in the same oceans as their closest cousins, where
• E16: Did These Giant Sloths Poop Themselves to Death? (2021-07-14) — At Tanque Loma, at least 22 giant ground sloths in the genus Eremotherium met their end. Of the five hypotheses that researchers proposed for what killed the sloths, the best suppo
• E17: The Traits That Spawned the Age of Mammals (2021-07-21) — Lots of the traits we think of as defining us as mammals show up pretty early, during the time of the dinosaurs. And, in some cases, they show up a lot earlier and in things that w
• E18: The Island of the Last Surviving Mammoths (2021-07-29) — The Wrangel Island mammoths would end up being the final survivors of a once-widespread genus. In their final years, after having thrived in many parts of the world for millions of
• E19: Where Are All the Medium-Sized Dinosaurs? (2021-08-12) — The remains of medium-sized predatory dinosaurs are pretty rare in places where giant predators like T. rex existed. Which is weird, because that’s just not how ecosystems work tod
• E20: How the Starfish Got Its Arms (2021-08-24) — The story of how the starfish got its arms reminds us that even animals that might be familiar to us today can have incredibly deep histories – ones that stretch back almost half a
• E21: The Creature That Stumped Darwin (2021-09-01) — Toxodon was one of the last members of a lineage that vanished 11,000 years ago after thriving in isolation for millions of years. And its fossils would inspire a revolutionary thi
• E22: How Pollination Got Going Twice (2021-09-16) — The world of the Jurassic was a lot like ours – similar interactions between plants and insects were happening, but the players have changed over time. Because it looks like pollin
• E23: How a Supervolcano Ignited an Evolutionary Debate (2021-09-23) — The Toba supervolcano was the biggest explosive eruption of the last 2.5 million years. And humans were around to see it, or at least feel its effects! But what were those effects?
• E24: How a Mass Extinction Event Created the Amazon (2021-09-29) — The Amazon rainforest of South America is a paradise for flowering plants. But long ago, the landscape that we now think of as the Amazon looked very different. And would you belie
• E25: When Mammals Only Went Out At Night (2021-10-07) — For decades, scientists believed dinosaurs were diurnal and tiny mammals were nocturnal. But as researchers have uncovered more mammalian fossils and studied the biology of differe
• E26: How Ancient Whales May Have Changed the Deep Ocean (2021-10-21) — It looks like the evolution of ocean-going whales like Borealodon may have affected communities found in the deep ocean, like the ones found around geothermal vents. And it turns o
• E27: How Dinosaurs Coupled Up (2021-10-28) — Dinosaur mating behavior has been the subject of a lot of speculation, but what can we actually say about it from the fossil record?
• E28: When It Was Too Hot for Leaves (2021-11-17) — Plants first made their way onto land at least 470 million years ago but for their first 80 million years, leaves as we know them today didn’t exist. What held them back?
• E29: Why The Paleo Diet Couldn't Save The Neanderthals (2021-12-02) — These relatives of ours lived in Eurasia for more than 300,000 years. They were expert toolmakers, using materials like stone, wood, and animal bone. They were also skilled hunters
• E30: The Fossil Record In Your Mouth (2021-12-09) — The hardened residue scraped off your teeth at the dentist is called your dental calculus, and your dental calculus is the only part of your body that actually fossilizes while you
• E31: When Pterosaurs Walked (2021-12-16) — If you know one thing about pterosaurs, it’s that they’re flyers. And while pterosaurs may be well-known for their domination of the skies in the Mesozoic Era, they didn’t live the

Season 2022

• E1: How our deadliest parasite turned to the dark side (2022-01-11) — Around 10,000 years ago, somewhere in Africa, a microscopic parasite made a huge leap. With a little help from a mosquito, it left its animal host – probably a gorilla – and found
• E2: Primates vs Snakes (An Evolutionary Arms Race) (2022-01-19) — The Snake Detection Hypothesis proposes that the ability to quickly spot and avoid snakes is deeply embedded in primates, including us – an evolutionary consequence of the danger s
• E3: How the Rise of Social Insects Shrunk These Dinosaurs (2022-01-27) — We often think of dinosaurs as either preying on other dinos or mammals, or as plant-eaters — but in ecosystems today, those aren’t the only two options. So why would we expect di
• E4: How Vertebrates Got Teeth… And Lost Them Again (2022-02-08) — As revolutionary as teeth were, they would go on to disappear in some groups of vertebrates. But why?
• E5: How Horses Went From Food To Friends (2022-02-16) — Do our modern horses descend from just one domesticated population, or did it happen many times, in many places? Answering these questions has been tricky, as we’ve needed to bring
• E6: Why We Only Have Ten Toes (It's a Long Story) (2022-02-23) — Today, all mammals from humans to bats have five fingers or fewer. Yes, even whales, whose finger bones are hidden in their fins. Birds have four or fewer and amphibians get the be
• E7: Sharks nearly went extinct 19 million years ago #shorts (2022-03-02) — There used to be SO MANY sharks…where did they go?
• E8: Dire wolves aren’t wolves at all #shorts (2022-03-03) — Dire wolves aren’t actually wolves but what they are might be even cooler.
• E9: Could humans survive if they traveled back in time 3 billion years? #shorts (2022-03-04) — Could humans survive during the Precambrian?
• E10: Some trees are more closely related to broccoli than to other trees #shorts (2022-03-07) — Don’t be fooled by convergent evolution.
• E11: Human knees are the worst and we have evolution to thank for that #shorts (2022-03-08) — Why do human knees suck?
• E12: A crater in Turkmenistan has been on fire for about 50 years #shorts (2022-03-10) — And it’s been reported that one of the geologists started it on purpose?
• E13: When a Giant Pterosaur Ruled the European Islands (2022-03-15) — The ecological niche of apex predators was empty on Hateg Island, waiting to be occupied by something large, mobile, and powerful enough to fill it.
• E14: Only one human has been excavated from the La Brea Tar Pits #shorts (2022-03-17)
• E15: Could humans survive a giant space rock colliding with Earth 66 million years ago? #shorts (2022-03-18) — Would you have survived the K-Pg Impact?
• E16: The Sudden Rise of the First Colossal Animal (2022-03-22) — A truly enormous ichthyosaur around the size of a modern sperm whale, reached its size within just a few million years of taking to the water – a blink of an eye in evolutionary ti
• E17: The Tasmanian tiger is definitely extinct. So why do people keep report sightings of them? #shorts (2022-03-25) — Thylacines are definitely extinct!
• E18: The Extreme Hyenas That Didn't Last (2022-03-29) — Hyenas weren’t always able to eat bones. In fact, only a few million years ago, they lived very different lives.
• E19: Who forged one of the most famous fake fossils of all time? #shorts (2022-03-31)
• E20: After this bird went extinct the first time, evolution just hit replay #shorts (2022-04-04) — The bird that evolved twice!
• E21: Someone lost the only fossil from what might’ve been the biggest dinosaur ever #shorts (2022-04-05)
• E22: Would you have survived the biggest mass extinction of all time? #shorts (2022-04-06)
• E23: An ancient insect trapped in amber has a parasitic mushroom erupting out of it? #shorts (2022-04-08) — I will pass on the parasitic mind-controlling mushroom, thanks
• E24: How the Smallest Animal Got So Simple (2022-04-13) — We tend to think that evolution only goes in one direction— toward getting bigger and more advanced. But that’s not always the case. This tiny, simple animal, the Myxozoans, (yes,
• E25: We know a lot about dinosaurs but…what was the first dinosaur? #shorts (2022-04-14)
• E26: Why Sour May Be The Oldest Taste (2022-04-20) — While sour taste's original purpose was to warn vertebrates of danger, in a few animal groups, including us, its role has reversed. The taste of danger became something it was dang
• E27: The Ancient Human Species With A Missing Body (2022-04-27) — Only a handful of Denisovan fossils have been identified. In the absence of actual body fossils, it’s impossible for us to reconstruct their morphology, right?
• E28: Are there dinosaur fossils in space? #shorts (2022-05-02)
• E29: Why don’t rabbits get really, really big? #shorts (2022-05-03)
• E30: An extinct human species was discovered deep within a cave system #shorts (2022-05-04)
• E31: When Ants Domesticated Fungi (2022-05-10) — While we’ve been farming for around 10,000 to 12,000 years, the ancestors of ants have been doing it for around 60 million years. So when, and how, and why did ants start … farming
• E32: The Curious Case of the Cave Lion (2022-05-17) — A mysterious, large feline roamed Eurasia during the last ice age. Its fossils have been found across the continent, and it’s been the subject of ancient artwork. So what exactly w
• E33: Is This The Oldest Dad In The Fossil Record? (2022-05-26) — Fossil evidence suggests Diictodon used burrows to breed, and that a parent stayed behind to feed and protect their young. And the parent that stayed behind? It might’ve been the m
• E34: Why did so many predators die at the Cleveland-Lloyd Dinosaur Quarry? #shorts (2022-05-27) — There’s something weird going on at the Cleveland-Lloyd Dinosaur Quarry in what’s now Utah.
• E35: What is the most successful human species? #shorts (2022-05-31) — Does Homo erectus beat out Homo sapiens?
• E36: Sharks have antibacterial skin. Can we use that to save lives? #shorts (2022-06-01) — Sometimes modern problems require ancient, evolutionary solutions.
• E37: This Ice Age pup's last meal was a woolly rhino #shorts (2022-06-02) — What was this ancient pup’s last meal?
• E38: What came first, the sabertooth or the cat? #shorts (2022-06-03) — The newest oldest saber-toothed mammal
• E39: How To Build A Woolly Mammoth (But Should We?) (2022-06-08) — In the quest to understand how evolution basically built the woolly mammoth, we may have found the blueprints for building them ourselves.
• E40: Something Has Been Making This Mark For 500 Million Years (2022-06-15) — Paleodictyon, a hexagonal-patterned fossil, is a bit of a mystery. We don’t even know if it’s a trace fossil, or the organism itself. So… what could it be?
• E41: Giant Viruses Blur The Line Between Alive and Not (2022-06-29) — In 2003, microbiologists made a huge discovery. One that would force us to reconsider a lot of what we thought we knew about the evolution of microbial life: giant viruses.
• E42: This new giant bacterium is visible to the naked eye #shorts (2022-07-06) — Microbiology goes macro with a new giant bacterium!
• E43: Another Spinosaurus study, another opportunity to debate if Spinosaurus was aquatic #shorts (2022-07-07) — Spinosaurus had dense bones!
• E44: There were dinosaurs with basically no arms at all, just hands! #shorts (2022-07-08) — Guemesia: a new no-arm dino
• E45: When Giant Millipedes Reigned (2022-07-13) — This giant millipede was the largest known invertebrate to ever live on land. So how did it get so big??
• E46: How Plate Tectonics Transformed Los Angeles (2022-07-21) — Despite the profound changes we’ve made here in recent history, the epic saga of Los Angeles' natural history is still visible – and even striking – if you know where and how to lo
• E47: Why Does Caffeine Exist? (2022-07-28) — Today, billions of people around the world start their day with caffeine. But how and why did the ability to produce this molecule independently evolve in multiple, distantly-relat
• E48: This was the biggest earthquake humans ever experienced #shorts (2022-08-03) — One of the biggest earthquakes humans ever experienced happened around 3800 years ago in what's now northern Chile.
• E49: Someone stole two of the most important documents in the history of science #shorts (2022-08-03) — We have no idea where they were all this time, or who stole and returned them and why.
• E50: You can thank evolution for flesh-eating bees #shorts (2022-08-05) — Flesh-eating bees exist!
• E51: This is one of the oldest art workshops ever discovered! #shorts (2022-08-05) — Archaeologists have discovered an ancient art workshop
• E52: Did An Ancient Pathogen Reshape Our Cells? (2022-08-11) — There is one – and only one – group of mammals that doesn’t have alpha-gal: the catarrhine primates, which are the monkeys of Africa and Asia, the apes, and us.
• E53: How Whale Evolution Kind Of Sucked (2022-08-18) — Mystacodon is the earliest known mysticete, the group that, today, we call the baleen whales. But if this was a baleen whale, where was its baleen? Where did baleen come from? And
• E54: The Fungi That Turned Ants Into Zombies (2022-08-23) — This fungus was actually manipulating ants’ movements, forcing them to do something they’d never ordinarily do, something strange, yet specific…
• E55: Did you know that fossils can get sick? #shorts (2022-08-31) — Did you know that fossils can get sick? – Specifically with Pyrite Disease
• E56: A supervolcano in Idaho once caused a disaster 900 miles away. #shorts (2022-09-08) — Disaster in the great plains!
• E57: A bunch of very important fossils disappeared during WWII. #shorts (2022-09-09) — 80 years ago, a bunch of fossils of ancient humans disappeared.
• E58: Did this animal poop cubes? Giant cubes? #shorts (2022-09-13) — Congrats! You just found a wombat burrow. And the cubes are its poop.
• E59: Are wisdom teeth a problem for us because of evolution? Or because of our development? #shorts (2022-09-14) — Wisdom teeth can be such a pain
• E60: Our extinct relative was an ancient leopard’s lunch. #shorts (2022-09-16) — Paranthropus got chomped by a leopard
• E61: When did we start wearing clothes? #shorts (2022-09-17) — We didn’t always wear clothes!
• E62: Did Megalodon go after whale faces specifically? #shorts (2022-09-22) — Ancient sperm whale heads belonged on every shark-cuterie board
• E63: Where Did Water Come From? (2022-09-27) — Mercury, Venus, and Mars are all super low on water – so where did ours come from and why do we have so much of it? We think our water came from a few unlikely sources: meteorites,
• E64: Our Ancient Relative That Said 'No Thanks' To Life On Land (2022-10-04) — Around the time that some of our fishapod relatives were crawling out of the water, others were turning around and diving right back in.
• E65: Imagine a cat's mouth fully covering up their saber teeth. #shorts (2022-10-05) — We might’ve been wrong about how this saber-toothed cat looked
• E66: Darwin correctly predicted an animal existed without ever seeing it. #shorts (2022-10-07) — Sometimes evolution is completely predictable.
• E67: Neandertals weren’t dumb cavemen. In lots of ways, they were just like us. #shorts (2022-10-10) — Shanidar 1 got by with a little help from his friends
• E68: Here are two ways to get a fossil species named after you. #shorts (2022-10-14) — Here are two ways to get a fossil species named after you.

Frequently Asked Questions

How many seasons does Eons have? 6 season(s) with 246 episodes.

Who created Eons? Hank Green.

Where can I watch Eons? See the Where to Watch section above for current streaming options.