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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 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?
- Now Playing13minSpace is Full of Junk. Here's How to Clean It Up...
- Now Playing15minDark Forest: Should We Not Contact Aliens?
It's Okay to Be Smart
- Now Playing5minMuch A-Do About Hair
- Now Playing5minWhy Your Brain Is In Your Head
- Now Playing6minIs Your Eye Color Real?
- Now Playing2minThe Sun Is A Magnet!
- Now Playing7minHow Baby Sea Turtles Find Their Way Home
- Now Playing5minThe Superb Owl!
- Now Playing5minSunburn, Sweat and the Science of Summer!
- Now Playing4minWhy Seasons Make No Sense
- Now Playing7minIncredible Tails Of Amazing Whales!
- Now Playing5minThe Only Animal That Weeps
- Now Playing5minSpit: Everything You Never Wanted To Know
- Now Playing5minThe Odds of Finding Life and Love
- Now Playing6minWhy Do Things Sound Scary?
- Now Playing4minWe're Mainly Microbe: Meet Your Microbiome
- Now Playing7minWhy Don't Ants Get Stuck in Traffic
- Now Playing5minDo You Really Have Two Brains?
- Now Playing5minCould Planet Minecraft Actually Exist?
- Now Playing6minIs Sugar A Drug?
- Now Playing6minThe Cheerios Effect
- Now Playing9minIs This A NEW SPECIES?!
Origin of Everything
- Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
- Now Playing9minDoes the Rorschach Inkblot Test Work?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing11minWhy Does the Government Pay for Art?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing7minWhy are 18 Year Olds Considered Adults?
- Now Playing11minModern Warfare and Alien Invasions
- Now Playing8minWhere Does the #Hashtag Symbol Come From?
- Now Playing8minWhy Do Kids Have Their Own Bedrooms?
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing10min6 Weird Facts About the History of Birth Control
- Now Playing7minWhy Are There So Few Women in Computer Science?
- Now Playing8minWhy Do We Wash Our Hands After Going to the Bathroom?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing10minHow Did Makeup Ads Go From Style to Science?
- Now Playing10minDo Standardized Tests Do More Harm Than Good?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing10minThe Origin of Race in the USA
Two Cents
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing6minShould I Buy Bitcoin?
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing8min5 Ways People Are Dumb About Money
- Now Playing6minHow Do You Actually Buy A House?
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing5minBudgeting Basics
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing4minWhat is the DOW?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing6minWomen Financial Superpowers
- Now Playing6minMoving Without Spending a Fortune
Monstrum
- Now Playing10minIs Yuki-onna the Most Terrifying Snow Monster?
- Now Playing17minModern Zombies: The Rebirth of the Undead
- Now Playing12minThe Origins of 'Big Bug' Science Fiction
- Now Playing13minLeprechaun: From Gold-Loving Cobbler to Cultural Icon
- Now Playing11minCan All Monsters Be Traced Back to Tiamat?
- Now Playing10minHow Bloody Mary Turns Fear Into Fun
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing12minDeath Worms: Fact or Fiction?
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
- Now Playing6minThe Origin of Medusa
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
- Now Playing10minJorÅgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing6minRethinking Frankenstein's Monster
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
Eons
- Now Playing10minWhy Triassic Animals Were Just the Weirdest
- Now Playing7minHow the Smallest Animal Got So Simple
- Now Playing10minHow South America Made the Marsupials
- Now Playing9minHow Ancient Microbes Rode Bug Bits Out to Sea
- Now Playing13minA Brief History of Geologic Time
- Now Playing8minThe Mystery of the Eocene's Lethal Lake
- Now Playing11minHow Volcanoes Froze the Earth...Twice
- Now Playing6minThe Age of Giant Insects
- Now Playing11minHow Ancient Whales May Have Changed the Deep Ocean
- Now Playing12minThe Island of Huge Hamsters and Giant Owls
- Now Playing7minHow the T-Rex Lost Its Arms
- Now Playing7minThe Other Explosion You Should Know About
- Now Playing6minThe Most Useful Fossils In The World
- Now Playing9minHow the Andes Mountains Might Have Killed a Bunch of Whales
- Now Playing8minDid An Ancient Pathogen Reshape Our Cells?
- Now Playing10minHow Snake Venom Sparked An Evolutionary Arms Race
- Now Playing7minThe Return of Giant Skin-Shell Sea Turtles
- Now Playing10minThe Pandemic That Lasted 15 Million Years
- Now Playing10minWhen Camels Roamed North America
- Now Playing9minOur Bizarre, Possibly Venomous, Relative
Hot Mess
- 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 Playing5minWho Should Pay To Fix Climate Change?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- 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 Indigenous Communities Teach Us About Climate Change
- Now Playing10minAre You Scared Enough? feat. David Wallace-Wells
- Now Playing5minWhy Climate Change is Unjust
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing4minHow Much Energy Does the Internet Use?
Space Time
- Now Playing15minCan The Crisis in Cosmology Be Solved With Cosmic Voids?
- Now Playing15minThe Real Possibility of Mapping Alien Planets!
- Now Playing14minHow We Know The Earth Is Ancient
- Now Playing13minSound Waves from the Beginning of Time
- Now Playing14minHow Many States Of Matter Are There?
- Now Playing11minThe Unruh Effect
- Now Playing13minWhy Did Attosecond Physics Win the Nobel Prize?
- Now Playing11minSupervoids vs Colliding Universes!
- Now Playing13minThe Secrets of Feynman Diagrams
- Now Playing12minThe Nature of Nothing
- Now Playing16minHow Are Quasiparticles Different From Particles?
- Now Playing13minCan Space Be Infinitely Divided?
- Now Playing11minExtraterrestrial Superstorms
- Now Playing17minWhat's Your Brain's Role in Creating Space & Time?
- Now Playing12minNeutron Stars Collide in New LIGO Signal?
- Now Playing3minThe Leap Second Explained
- Now Playing15minElectrons DO NOT Spin
- Now Playing13minThe Phantom Singularity
- Now Playing6minHow Do You Measure the Size of the Universe?
- Now Playing6minThe Race to a Habitable Exoplanet - Time Warp Challenge
Beat Making Lab
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing2minHealth Worker Beat
- Now Playing4minTrapped In Paradise
- 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 Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing5minBehind the Beat: Portobelo
- Now Playing2minWhat's In the Backpack?
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
Infinite Series
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing8minAre Prime Numbers Made Up?
- Now Playing14minMaking Probability Mathematical
- Now Playing9minProving Brouwer's Fixed Point Theorem
- Now Playing11minTopology vs "a" Topology
- Now Playing13minNetwork Mathematics and Rival Factions | Infinite Series
- Now Playing10minUnraveling DNA with Rational Tangles
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing12minProving Pick's Theorem
- Now Playing9minCan You Solve the Poison Wine Challenge?
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
- Now Playing11minCan We Hear Shapes?
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing11minWhat are Numbers Made of?
- Now Playing14minInfinite Chess
- Now Playing14minCan We Combine pi & e to Make a Rational Number?
- Now Playing11minCan We Hear Shapes?
- Now Playing8minThe Multiplication Multiverse
- Now Playing12minHow Infinity Explains the Finite
Idea Channel
- Now Playing5minHow will the Animated GIF affect the Presidential Election?
- Now Playing9minIs the Universe a Computer?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing5minIs CSS and Website Design a Fashion Statement?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing6minWhat Do Santa and Wrestling Have In Common?
- Now Playing8minDo Knock-Offs Prove the Value of a Brand?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing9minCan Video Games Become the Next Spectator Sport?
- Now Playing4minThe Bronies Phenomenon
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing6minThe Retro Awesomeness of Adventure Time
- Now Playing5minThere's No Such Thing as Online?!?
- Now Playing5minA Visit to Mr. Monfre's Class
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?
- Now Playing4minAre Mashups the End of Music Genres?