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Eons on IMDB
First Aired: June 26th, 2017
Status: Continuing
Network: YouTube
Summary: 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.
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# of Episodes: 246
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Season 6
Episode 1: How our deadliest parasite turned to the dark side
Air Date: January 11st, 2022
Summary: 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 its way to a new host: us.
Episode 2: Primates vs Snakes (An Evolutionary Arms Race)
Air Date: January 19th, 2022
Summary: 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 snakes have posed to us over millions of years.
Episode 3: How the Rise of Social Insects Shrunk These Dinosaurs
Air Date: January 27th, 2022
Summary: 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 dinosaurs to have only been carnivores or herbivores, with the occasional omnivore thrown in the mix?
Episode 4: How Vertebrates Got Teeth... And Lost Them Again
Air Date: February 8th, 2022
Summary: As revolutionary as teeth were, they would go on to disappear in some groups of vertebrates. But why?
Episode 5: How Horses Went From Food To Friends
Air Date: February 16th, 2022
Summary: 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 together evidence from art, archaeology, and ancient DNA…Because, as it turns out, the history of humans and horses has been a pretty wild ride.
Episode 6: Why We Only Have Ten Toes (It's a Long Story)
Air Date: February 23rd, 2022
Summary: 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 best of both worlds, often having four digits on their “hands” and five on their “feet.” But no species of vertebrates have more than five digits, let alone eight!
Episode 7: Sharks nearly went extinct 19 million years ago #shorts
Air Date: March 2nd, 2022
Summary: There used to be SO MANY sharks...where did they go?
Episode 8: Dire wolves aren’t wolves at all #shorts
Air Date: March 3rd, 2022
Summary: Dire wolves aren’t actually wolves but what they are might be even cooler.
Episode 9: Could humans survive if they traveled back in time 3 billion years? #shorts
Air Date: March 4th, 2022
Summary: Could humans survive during the Precambrian?
Episode 10: Some trees are more closely related to broccoli than to other trees #shorts
Air Date: March 7th, 2022
Summary: Don’t be fooled by convergent evolution.
Episode 11: Human knees are the worst and we have evolution to thank for that #shorts
Air Date: March 8th, 2022
Summary: Why do human knees suck?
Episode 12: A crater in Turkmenistan has been on fire for about 50 years #shorts
Air Date: March 10th, 2022
Summary: And it’s been reported that one of the geologists started it on purpose?
Episode 13: When a Giant Pterosaur Ruled the European Islands
Air Date: March 15th, 2022
Summary: 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.
Episode 14: Only one human has been excavated from the La Brea Tar Pits #shorts
Air Date: March 17th, 2022
Episode 15: Could humans survive a giant space rock colliding with Earth 66 million years ago? #shorts
Air Date: March 18th, 2022
Summary: Would you have survived the K-Pg Impact?
Episode 16: The Sudden Rise of the First Colossal Animal
Air Date: March 22nd, 2022
Summary: 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 time.
Episode 17: The Tasmanian tiger is definitely extinct. So why do people keep report sightings of them? #shorts
Air Date: March 25th, 2022
Summary: Thylacines are definitely extinct!
Episode 18: The Extreme Hyenas That Didn't Last
Air Date: March 29th, 2022
Summary: Hyenas weren’t always able to eat bones. In fact, only a few million years ago, they lived very different lives.
Episode 19: Who forged one of the most famous fake fossils of all time? #shorts
Air Date: March 31st, 2022
Episode 20: After this bird went extinct the first time, evolution just hit replay #shorts
Air Date: April 4th, 2022
Summary: The bird that evolved twice!
Episode 21: Someone lost the only fossil from what might’ve been the biggest dinosaur ever #shorts
Air Date: April 5th, 2022
Episode 22: Would you have survived the biggest mass extinction of all time? #shorts
Air Date: April 6th, 2022
Episode 23: An ancient insect trapped in amber has a parasitic mushroom erupting out of it? #shorts
Air Date: April 8th, 2022
Summary: I will pass on the parasitic mind-controlling mushroom, thanks
Episode 24: How the Smallest Animal Got So Simple
Air Date: April 13rd, 2022
Summary: 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, animal!) evolved from something bigger and more complex.
Episode 25: We know a lot about dinosaurs but...what was the first dinosaur? #shorts
Air Date: April 14th, 2022
Episode 26: Why Sour May Be The Oldest Taste
Air Date: April 20th, 2022
Summary: 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 dangerous for us to avoid.
Episode 27: The Ancient Human Species With A Missing Body
Air Date: April 27th, 2022
Summary: 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?
Episode 28: Are there dinosaur fossils in space? #shorts
Air Date: May 2nd, 2022
Episode 29: Why don’t rabbits get really, really big? #shorts
Air Date: May 3rd, 2022
Episode 30: An extinct human species was discovered deep within a cave system #shorts
Air Date: May 4th, 2022
Episode 31: When Ants Domesticated Fungi
Air Date: May 10th, 2022
Summary: 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?
Episode 32: The Curious Case of the Cave Lion
Air Date: May 17th, 2022
Summary: 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 were these big cats?
Episode 33: Is This The Oldest Dad In The Fossil Record?
Air Date: May 26th, 2022
Summary: 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 male.
Episode 34: Why did so many predators die at the Cleveland-Lloyd Dinosaur Quarry? #shorts
Air Date: May 27th, 2022
Summary: There’s something weird going on at the Cleveland-Lloyd Dinosaur Quarry in what’s now Utah.
Episode 35: What is the most successful human species? #shorts
Air Date: May 31st, 2022
Summary: Does Homo erectus beat out Homo sapiens?
Episode 36: Sharks have antibacterial skin. Can we use that to save lives? #shorts
Air Date: June 1st, 2022
Summary: Sometimes modern problems require ancient, evolutionary solutions.
Episode 37: This Ice Age pup's last meal was a woolly rhino #shorts
Air Date: June 2nd, 2022
Summary: What was this ancient pup’s last meal?
Episode 38: What came first, the sabertooth or the cat? #shorts
Air Date: June 3rd, 2022
Summary: The newest oldest saber-toothed mammal
Episode 39: How To Build A Woolly Mammoth (But Should We?)
Air Date: June 8th, 2022
Summary: In the quest to understand how evolution basically built the woolly mammoth, we may have found the blueprints for building them ourselves.
Episode 40: Something Has Been Making This Mark For 500 Million Years
Air Date: June 15th, 2022
Summary: 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?
Episode 41: Giant Viruses Blur The Line Between Alive and Not
Air Date: June 29th, 2022
Summary: 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.
Episode 42: This new giant bacterium is visible to the naked eye #shorts
Air Date: July 6th, 2022
Summary: Microbiology goes macro with a new giant bacterium!
Episode 43: Another Spinosaurus study, another opportunity to debate if Spinosaurus was aquatic #shorts
Air Date: July 7th, 2022
Summary: Spinosaurus had dense bones!
Episode 44: There were dinosaurs with basically no arms at all, just hands! #shorts
Air Date: July 8th, 2022
Summary: Guemesia: a new no-arm dino
Episode 45: When Giant Millipedes Reigned
Air Date: July 13rd, 2022
Summary: This giant millipede was the largest known invertebrate to ever live on land. So how did it get so big??
Episode 46: How Plate Tectonics Transformed Los Angeles
Air Date: July 21st, 2022
Summary: 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 look for it.
Episode 47: Why Does Caffeine Exist?
Air Date: July 28th, 2022
Summary: 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-related lineages of flowering plants, again and again?
Episode 48: This was the biggest earthquake humans ever experienced #shorts
Air Date: August 3rd, 2022
Summary: One of the biggest earthquakes humans ever experienced happened around 3800 years ago in what's now northern Chile.
Episode 49: Someone stole two of the most important documents in the history of science #shorts
Air Date: August 3rd, 2022
Summary: We have no idea where they were all this time, or who stole and returned them and why.
Episode 50: You can thank evolution for flesh-eating bees #shorts
Air Date: August 5th, 2022
Summary: Flesh-eating bees exist!
Episode 51: This is one of the oldest art workshops ever discovered! #shorts
Air Date: August 5th, 2022
Summary: Archaeologists have discovered an ancient art workshop
Episode 52: Did An Ancient Pathogen Reshape Our Cells?
Air Date: August 11st, 2022
Summary: 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.
Episode 53: How Whale Evolution Kind Of Sucked
Air Date: August 18th, 2022
Summary: 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 how did it live without it?
Episode 54: The Fungi That Turned Ants Into Zombies
Air Date: August 23rd, 2022
Summary: This fungus was actually manipulating ants’ movements, forcing them to do something they’d never ordinarily do, something strange, yet specific…
Episode 55: Did you know that fossils can get sick?
Air Date: August 31st, 2022
Summary: Did you know that fossils can get sick? – Specifically with Pyrite Disease
Episode 56: A supervolcano in Idaho once caused a disaster 900 miles away
Air Date: September 8th, 2022
Summary: Disaster in the great plains!
Episode 57: A bunch of very important fossils disappeared during WWII
Air Date: September 9th, 2022
Summary: 80 years ago, a bunch of fossils of ancient humans disappeared.
Episode 58: Did this animal poop cubes? Giant cubes?
Air Date: September 13rd, 2022
Summary: Congrats! You just found a wombat burrow. And the cubes are its poop
Episode 59: Are wisdom teeth a problem for us because of evolution? Or because of our development?
Air Date: September 14th, 2022
Summary: Wisdom teeth can be such a pain
Episode 60: Our extinct relative was an ancient leopard’s lunch
Air Date: September 16th, 2022
Summary: Paranthropus got chomped by a leopard
Episode 61: When did we start wearing clothes?
Air Date: September 17th, 2022
Summary: We didn’t always wear clothes!
Episode 62: Did Megalodon go after whale faces specifically?
Air Date: September 22nd, 2022
Summary: Ancient sperm whale heads belonged on every shark-cuterie board
Episode 63: Where Did Water Come From?
Air Date: September 27th, 2022
Summary: 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, space dust, and even the sun.
Episode 64: Our Ancient Relative That Said 'No Thanks' To Life On Land
Air Date: October 4th, 2022
Summary: Around the time that some of our fishapod relatives were crawling out of the water, others were turning around and diving right back in.
Episode 65: Imagine a cat's mouth fully covering up their saber teeth
Air Date: October 5th, 2022
Summary: We might’ve been wrong about how this saber-toothed cat looked
Episode 66: Darwin correctly predicted an animal existed without ever seeing it
Air Date: October 7th, 2022
Summary: Sometimes evolution is completely predictable.
Episode 67: Neandertals weren’t dumb cavemen. In lots of ways, they were just like us
Air Date: October 10th, 2022
Summary: Shanidar 1 got by with a little help from his friends
Episode 68: Here are two ways to get a fossil species named after you
Air Date: October 14th, 2022
Summary: Here are two ways to get a fossil species named after you
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