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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 Playing14minOur Understanding of Floods is ALL Wrong
- Now Playing22minCan AI Help Us Talk to Whales?
- Now Playing16minWhy Is The World Rushing Back To The Moon?
- 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?
It's Okay to Be Smart
- Now Playing6minPay Attention!
- Now Playing5min5 Weird Involuntary Behaviors Explained!
- Now Playing3minWhy is the sky any color?
- Now Playing6minThe Surprising Origin of Thanksgiving Foods
- Now Playing6minWhy Do We Cook?
- Now Playing6minHow to Figure Out the Day of the Week For Any Date Ever
- Now Playing7minWhere Do Teeth Come From?
- Now Playing2minIs Evolution Random? - 12 Days of Evolution #2
- Now Playing7minHow the Meter Became The Meter
- Now Playing5minSunburn, Sweat and the Science of Summer!
- Now Playing2minWhat Is Evolution, Anyway? - 12 Days of Evolution #1
- Now Playing4minWhy Seasons Make No Sense
- Now Playing8minThe Science of Game of Thrones
- Now Playing4minHow Poop Shapes the World
- Now Playing6minWhy It Is What Time It Is (The History of Time)
- Now Playing2minWhy Do Men Have Nipples? - 12 Days of Evolution #7
- Now Playing4minWhat's The Loudest Possible Sound?
- Now Playing6minVENOM: Nature's Killer Cocktails
- Now Playing5minThe Superb Owl!
- Now Playing5minЩΉӨ BЦIƬ ƬΉΣ PYЯΛMIDƧ - Who Built The Pyramids
Origin of Everything
- Now Playing8minWhere does the Nuclear Family Come From?
- 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 Playing5minWhat Was Jesus' Real Name?
- Now Playing9minHow Did Edison Invent Christmas Lights?
- Now Playing10minThe Origin of Race in the USA
- Now Playing9minWhat If There Were No Taxes?
- Now Playing11minWhy Are We Obsessed with Cults?
- Now Playing10minWould You Have Joined the American Revolution?
- Now Playing6minWhy it Was Illegal to be Ugly?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing7minWhy are 18 Year Olds Considered Adults?
- Now Playing11minModern Warfare and Alien Invasions
- Now Playing9minDoes the Rorschach Inkblot Test Work?
- Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing11minWhy Does the Government Pay for Art?
- Now Playing8minWhere Does the #Hashtag Symbol Come From?
Two Cents
- Now Playing8min5 Ways People Are Dumb About Money
- Now Playing6minHow Do You Actually Buy A House?
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing6minShould I Buy Bitcoin?
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing4minWhat is the DOW?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing5minBudgeting Basics
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing7minLove and Money
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing7minCan You Really Retire in Your 30s?
Monstrum
- Now Playing11minMapinguari: Fearsome Beast and Protector of the Amazon
- Now Playing12minHave Humans Always Feared Sharks?
- Now Playing12minWhat Hellhounds Reveal about Humans' Oldest Companion
- Now Playing12minAre Cyborgs Really Monsters?
- Now Playing9minPost-Dracula Vampires: From Anne Rice to Twilight
- Now Playing13minUnicorns: Magical Icons or Violent Beasts?
- Now Playing10minTikbálang: The Filipino Nightmare Shapeshifter
- Now Playing9minAdze: the Shapeshifting Firefly from West Africa
- Now Playing17minAlien Abduction and UFOs: Why Are Grays So Common?
- Now Playing26minThe Killer Origins of the Werewolf
- Now Playing15minEgyptian Mummies: From Sacred Vessels to Scary Undead
- Now Playing12minBeyond the Supernatural Horror of the Nishi Daak Ghost
- Now Playing31minThe Werewolf's Modern Metamorphosis
- Now Playing7minWhat Dragons Say About Us
- Now Playing8minBunyip: Australia's Mysterious Amphibian Monster
- Now Playing10minWhy the Dragon is Central to Chinese Culture
- Now Playing7minEl Chupacabras, a Modern Mystery
- Now Playing13minFire Cat or Fire Cart? The History of Japan's Kasha
- Now Playing11minMari Lwyd: The Skeleton Horse's Deep Past with Christmas
- Now Playing7minKasagonagá: The Cute, Kind Monster We All Need Right Now
Eons
- Now Playing9minIt's Becoming Very Clear That Birds Are Not Normal
- Now Playing10minHow Horses Took Over North America (Twice)
- Now Playing10minWhy We Only Have Ten Toes (It's a Long Story)
- Now Playing11minHow Earth's First, Unkillable Animals Saved the World
- Now Playing9minWhen a Giant Pterosaur Ruled the European Islands
- Now Playing8minWhen the Rainforests Collapsed
- Now Playing11minWas This Dinosaur a Cannibal?
- Now Playing9minWhen Insects First Flew
- Now Playing8minThe Weird, Watery Tale of Spinosaurus
- Now Playing10minHow Plants Became Carnivores
- Now Playing12minWhen Giant Scorpions Swarmed the Seas
- Now Playing8minHow a Hot Planet Created the World's Biggest Snake
- Now Playing7minThe Great Snake Debate
- Now Playing8minHow a Mass Extinction Event Created the Amazon
- Now Playing9minCould Neanderthals Use Symbolism?
- Now Playing13minHow Plate Tectonics Transformed Los Angeles
- Now Playing4minThe Strange Case of the Buzzsaw Jaws
- Now Playing10minWhen Rodents Rafted Across the Ocean
- Now Playing8minThese Fossils Were Supposed To Be Impossible
- Now Playing10minWhen Camels Roamed North America
Hot Mess
- Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
- Now Playing5minBeef Is Bad For The Climate. Can We Make It Better?
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing5minBeef Is Bad For The Climate. Can We Make It Better?
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing5minWhat's actually the worst greenhouse gas?
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing4minCould Space Mirrors Cool The Globe?
Space Time
- Now Playing9minGeneral Relativity & Curved Spacetime Explained!
- Now Playing8minDoes Dark Matter BREAK Physics?
- Now Playing12minThe Black Hole Information Paradox
- Now Playing9minBlack Hole Swarms
- Now Playing10minThe Vacuum Catastrophe
- Now Playing6minS2: The Future of Gravitational Waves
- Now Playing11minAre You a Boltzmann Brain?
- Now Playing11minThe Geometry of Causality
- Now Playing18minAre Many Worlds & Pilot Wave The Same Theory?
- Now Playing10minLife on Europa?
- Now Playing14minBlack Hole Harmonics
- Now Playing10minLife on Europa?
- Now Playing9minThe Treasures of Trappist-1
- Now Playing12minWhat Survives Inside A Black Hole?
- Now Playing11min5 REAL Possibilities for Interstellar Travel
- Now Playing11minWhy Quasars are so Awesome
- Now Playing11minHow Asteroid Mining Will Save Earth
- Now Playing13minDid Time Start at the Big Bang?
- Now Playing11minWe Are Star Stuff
- Now Playing8minIs The Alcubierre Warp Drive Possible?
Beat Making Lab
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing3minProf. Angel Sound Prison Beats Interview
- 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 Playing3minEpisode 1: Goma, Congo
- Now Playing4minDiablos (music video)
- Now Playing4minTrapped In Paradise
- Now Playing2minHealth Worker Beat
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing5minBehind the Beat: Portobelo
- Now Playing2minWhat's In the Backpack?
Infinite Series
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
- Now Playing9minThis Video was Not Encrypted with RSA
- Now Playing13minWhat is a Random Walk?
- Now Playing16minHow to Break Cryptography
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing17minSplitting Rent with Triangles
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing10minThe Assassin Puzzle
- Now Playing11minSingularities Explained
- Now Playing11minTopology vs "a" Topology
- Now Playing17minHacking at Quantum Speed with Shor's Algorithm
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
- Now Playing9minBeyond the Golden Ratio
- Now Playing14minCan a Chess Piece Explain Markov Chains?
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing14minBuilding an Infinite Bridge
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing11minThe Geometry of SET
- Now Playing15minArrow's Impossibility Theorem
Idea Channel
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?
- Now Playing6minIs Doctor Who a Religion?
- 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 Playing6minThe Retro Awesomeness of Adventure Time
- Now Playing4minThe Bronies Phenomenon
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing9minIs a DOS Attack a Weapon?
- 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 Playing6minWhat Do Santa and Wrestling Have In Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing5minIs CSS and Website Design a Fashion Statement?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing9minIs the Universe a Computer?
- Now Playing5minHow will the Animated GIF affect the Presidential Election?
- Now Playing4minIs Twitter the Newest Form of Literature?