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EonsJoin hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth.
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- Now Playing11minThe Hazy Evolution of Cannabis
- Now Playing11minMeasuring the Universe With a 14-Billion Light-Year Ruler
- Now Playing16minHow Eclipses Revealed Our Solar System
- Now Playing10minA Giant Monster With a Giant Problem
- Now Playing10minWhat Will Earth Be Like 300 Million Years From Now?
- Now Playing16minWhat If Gravity is Not A Fundamental Force?
- Now Playing15minDoes Space Emerge From A Holographic Boundary?
- Now Playing8minIs the Southern Accent Disappearing?
- Now Playing15minThis Winter Trend Is Overpowering Global Warming
- Now Playing8minWhat Was The Earliest Surgery?
It's Okay to Be Smart
- Now Playing8minIs There Intelligent Life Beyond Earth?
- Now Playing5minHow Science Defines A Year
- Now Playing8minWhere On Earth Do You Weigh The Least?
- Now Playing5minThis Rainforest Caterpillar Looks Like Donald Trump
- Now Playing6minUnderstanding Climate Science
- Now Playing5minHow Your Body Knows Left From Right
- Now Playing5minWhy Is The Universe So Empty? (ft. PHD Comics!)
- Now Playing6minCan Coral Reefs Survive Climate Change? #OursToLose
- Now Playing2minAre Humans Still Evolving? 12 Days of Evolution #11
- Now Playing8minIs Ultron Inevitable?
- Now Playing3minWhy Does Time Go Forward?
- Now Playing2minCan Evolution Create Information? - 12 Days of Evolution #9
- Now Playing4minThe Romantic Lure of Moonlight
- Now Playing7minSonic the Hedgehog Is Why You Have Thumbs!
- Now Playing5minWhy Are The Bees Dying?
- Now Playing5minThe Small Problem With Shrinking Ourselves
- Now Playing14minThis Face Changes the Human Story
- Now Playing7minWhy People Don't Believe In Climate Science
- Now Playing6minRelationship Advice from the Animal Kingdom
- Now Playing4minGoats!
Origin of Everything
- Now Playing12minSix Historically True Facts about Money
- Now Playing11minWhat is Racial Passing?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing8minWhy Do People Have Pets?
- Now Playing12minWhy Do We Have Housing Projects?
- Now Playing8minWhy Do We Eat Artificial Flavors?
- Now Playing10minWhat is Ethnicity?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing9minWhy Do We Drink Milk in School?
- Now Playing7minWhy Does Santa Wear Red?
- Now Playing9minThe Origin of Gender
- Now Playing8minWhy Did Europeans Enslave Africans?
- Now Playing7minThe True Origin of Killer Clowns
- Now Playing9minThe Origin of Gender
- Now Playing9minWhy Do All Malls Look the Same?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing11minWhy Do So Many Religions Have Headwear?
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing7minWhy Do We Eat Popcorn at The Movies?
- Now Playing10minThe 2nd Amendment Explained
Two Cents
- Now Playing5minHow Cars Can Keep You Poor
- Now Playing6minWomen Financial Superpowers
- Now Playing6minMoving Without Spending a Fortune
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minLove and Money
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minHow are credit scores calculated?
- Now Playing5minBudgeting Basics
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing4minWhat is the DOW?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing8minAre "Free" Video Games Really Free?
Monstrum
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing12minWas Púca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing6minThe Origin of Medusa
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
- Now Playing10minJorōgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
- Now Playing6minRethinking Frankenstein's Monster
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing12minDeath Worms: Fact or Fiction?
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing17minModern Zombies: The Rebirth of the Undead
Eons
- Now Playing11minFrom the Cambrian Explosion to the Great Dying
- Now Playing5minThat Time Oxygen Almost Killed Everything
- Now Playing10minLife, Sex & Death Among the Dire Wolves
- Now Playing10minWhen Giant Hypercarnivores Prowled Africa
- Now Playing10minHow Chilis Got Spicy (and Why We Love the Burn)
- Now Playing10minHow Blood Evolved (Many Times)
- Now Playing8minWhat Was The Earliest Surgery?
- Now Playing8minHow the Walrus Got Its Tusks
- Now Playing12minWhen Birds Had Teeth
- Now Playing7minThe Trouble With Trilobites
- Now Playing13minAn Illustrated History of Dinosaurs
- Now Playing11minDid These Giant Sloths Poop Themselves to Death?
- Now Playing9minOur Ancient Relative That Said 'No Thanks' To Life On Land
- Now Playing13minDid Raptorex Really Exist?
- Now Playing10minThe Hidden Genes That Make Us Human
- Now Playing9minThe Oddest Couple in the Fossil Record
- Now Playing12minYour Place in the Primate Family Tree
- Now Playing8minThe Extinction That Never Happened
- Now Playing5minThat Time Oxygen Almost Killed Everything
- Now Playing7minThe Genes We Lost Along the Way
Hot Mess
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing5minWhy Climate Change is Unjust
- Now Playing10minAre You Scared Enough? feat. David Wallace-Wells
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing7minWhat's The Best Car For The Climate?
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing7minWhat's The Best Car For The Climate?
- Now Playing5minWhat Happened to Nuclear Power?
- Now Playing3minCould climate change make you allergic to meat?
Space Time
- Now Playing17minWhat's Your Brain's Role in Creating Space & Time?
- Now Playing12minNeutron Stars Collide in New LIGO Signal?
- Now Playing13minCan Space Be Infinitely Divided?
- Now Playing11minExtraterrestrial Superstorms
- Now Playing16minHow Are Quasiparticles Different From Particles?
- Now Playing13minThe Secrets of Feynman Diagrams
- Now Playing11minSupervoids vs Colliding Universes!
- Now Playing12minThe Nature of Nothing
- Now Playing11minThe Unruh Effect
- Now Playing13minWhy Did Attosecond Physics Win the Nobel Prize?
- Now Playing14minHow Many States Of Matter Are There?
- Now Playing13minSound Waves from the Beginning of Time
- Now Playing14minHow We Know The Earth Is Ancient
- Now Playing15minCan The Crisis in Cosmology Be Solved With Cosmic Voids?
- Now Playing15minThe Real Possibility of Mapping Alien Planets!
- Now Playing15minCould We Decode Alien Physics?
- Now Playing9minWill Mars or Venus Kill You First?
- Now Playing13minWill You Travel to Space?
- Now Playing13minWill We Ever Find Alien Life?
- Now Playing11minWhy Quasars are so Awesome
Beat Making Lab
- Now Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing3minEpisode 1: Goma, Congo
- Now Playing4minDiablos (music video)
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
- Now Playing2minHealth Worker Beat
- Now Playing4minTrapped In Paradise
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing2minWhat's In the Backpack?
- Now Playing5minBehind the Beat: Portobelo
- Now Playing3minPanama: Meet the Kids Behind the Beats
Infinite Series
- Now Playing14minCan We Combine pi & e to Make a Rational Number?
- Now Playing8minThe Multiplication Multiverse
- Now Playing8minTelling Time on a Torus
- Now Playing14minKill the Mathematical Hydra
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
- Now Playing13minWhat is a Random Walk?
- Now Playing11minWhat was Fermat's "Marvelous" Proof?
- Now Playing9minCan You Solve the Poison Wine Challenge?
- Now Playing8minAre Prime Numbers Made Up?
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
- Now Playing11minDefining Infinity
- Now Playing9minProving Brouwer's Fixed Point Theorem
- Now Playing8minHow to Divide by "Zero"
- Now Playing17minHacking at Quantum Speed with Shor's Algorithm
- Now Playing9minThis Video was Not Encrypted with RSA
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing12minWhen Pi is Not 3.14
- Now Playing11minWhat was Fermat's "Marvelous" Proof?
- Now Playing11minDefining Infinity
- Now Playing8minTelling Time on a Torus
Idea Channel
- Now Playing6minIs Futurama the Best Argument Against Transhumanism?
- Now Playing3minSuper Mario Brothers as Surrealist Art?
- Now Playing6minAre Virtual Video Game Economies Becoming Real?
- Now Playing8minIs Sad Music Actually Sad?
- Now Playing9minDoes Math Really Exist?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing8minIs Developing Artificial Intelligence (AI) Ethical?
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- Now Playing5minAre You a Hipster?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing9minIs Community a Postmodern Masterpiece?
- Now Playing8minIs Piracy Helping Game of Thrones?
- Now Playing3minWhat Makes a Pop Star Authentic?
- Now Playing4minThe Bronies Phenomenon
- Now Playing7minCan Dungeons & Dragons Make You Confident & Successful?
- Now Playing6minAre MP3s & Vinyl Better than Live Music?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing5minIs Facebook Changing Our Identity?