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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 Playing22minCan AI Help Us Talk to Whales?
- 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
It's Okay to Be Smart
- Now Playing4minSpace Sounds
- Now Playing3minWhy I PBS
- Now Playing4minWhy I'm Scared of Spiders
- Now Playing6minThe Surprising Reason We Eat Spicy Food
- Now Playing9minCan You Bend Light Like This?
- Now Playing4minThis is a SUPER BLOOD MOON! Lunar Eclipses Explained
- Now Playing7minThe Real "Doctor Frankenstein"
- Now Playing7minCould Bigfoot REALLY Exist?
- Now Playing7minEl Niño and Why We Can't Predict the Weather
- Now Playing6minCan Coral Reefs Survive Climate Change? #OursToLose
- Now Playing6minWhy Are Cicadas So Good At Math?
- Now Playing10minMoney Is A Technological Fiction
- Now Playing4minWhat is Deja Vu?!
- Now Playing5minClaude Monet Was Half Honeybee
- Now Playing3minYour Mom is LITERALLY Part Of You!
- Now Playing6minAsteroid Mining: Our Ticket To Living Off Earth?
- Now Playing5min23 Reasons to be Cheerful (Thanks to Science!)
- Now Playing5minThe Cosmic Origins of Earth's Water
- Now Playing5minЩΉӨ BЦIƬ ƬΉΣ PYЯΛMIDƧ - Who Built The Pyramids
- Now Playing7minMusical Tesla Coils in Slow Motion! Featuring Physics Girl
Origin of Everything
- Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
- Now Playing8minWhy Do Women Give Birth Lying Down?
- Now Playing10minWhat is Cultural Appropriation?
- Now Playing7minHistory of the Word "Gay"
- Now Playing7minIs Poisoned Halloween Candy a Myth?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing10minWhat is Ethnicity?
- Now Playing12minWhy Doesn't the US Have Paid Parental Leave?
- Now Playing7minWhen Men Wore High Heels
- Now Playing7minWhy Do We Say "Asian American" Not "Oriental"?
- Now Playing8minWhen DId Marriage Become about Love?
- Now Playing8minWhy Was Crossdressing Illegal?
- Now Playing8minWhy Do Women Give Birth Lying Down?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing8minWhy Do People Have Pets?
- Now Playing10minWhy was Pink for Boys and Blue for Girls?
- Now Playing8minWhy is there a North and South Korea?
- Now Playing7minHow Columbus Invented Cannibals
- Now Playing7minHow Your Rubber Ducky Explains Colonialism
Two Cents
- Now Playing7minMoney, A Global Game of Trust
- Now Playing6minFighting the Wedding Industrial Complex
- Now Playing6minIs My Identity Safe From Hackers?
- Now Playing7minWhich College Majors Give the Most Bang for Your Buck?
- Now Playing7minIs Your Side Hustle Hustling You?
- Now Playing5minDo Kids Need to Learn About Money?
- Now Playing5minInsta-Everything
- Now Playing7minHow Retailers Stalk You Online
- Now Playing7minFighting the Financial Pitfalls of the Supermarket
- Now Playing9minHow Smart Entrepreneurs Think About PRICES!
- Now Playing6minI'm Young & Healthy, Can I Skip Health Insurance?
- Now Playing7minWhy It's More Expensive To Be Poor
- Now Playing6minTop 5 Biggest Financial Scams
- Now Playing7minShould I Invest In Cannabis Stocks?
- Now Playing7minWhat's The Real Cost of Dying?
- Now Playing6minHow to Ask for a Raise
- Now Playing6minShould I Buy Bitcoin?
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing8min5 Ways People Are Dumb About Money
Monstrum
- Now Playing6minRethinking Frankenstein's Monster
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
- Now Playing6minThe Origin of Medusa
- Now Playing10minJorōgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing12minWas Púca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing11minCan All Monsters Be Traced Back to Tiamat?
- Now Playing10minHow Bloody Mary Turns Fear Into Fun
- Now Playing17minModern Zombies: The Rebirth of the Undead
- Now Playing10minIs Yuki-onna the Most Terrifying Snow Monster?
- Now Playing13minLeprechaun: From Gold-Loving Cobbler to Cultural Icon
- Now Playing12minThe Origins of 'Big Bug' Science Fiction
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing12minDeath Worms: Fact or Fiction?
Eons
- Now Playing8minThe Ancient Human Species With A Missing Body
- Now Playing10minThat Time The Ocean Lost (Almost) All Its Oxygen
- Now Playing10minThe Facts About Dinosaurs & Feathers
- Now Playing10minWhen Ichthyosaurs Led a Revolution in the Seas
- Now Playing10minHow a Supervolcano Made the Cenozoic's Coolest Fossils
- Now Playing11minHow the Starfish Got Its Arms
- Now Playing11minThe Story of the Dino Stampede
- Now Playing9minThe Rise and Fall of the Bone-Crushing Dogs
- Now Playing7minWhy Do Things Keep Evolving Into Crabs?
- Now Playing10minHow Pollination Got Going Twice
- Now Playing11minWhen Penguins Went From The Sky To The Sea
- Now Playing8minThe Mystery of the Eocene's Lethal Lake
- Now Playing8minHow Ankylosaurs Got Their Clubs
- Now Playing8minWhere Did Viruses Come From?
- Now Playing9minThe Sudden Rise of the First Colossal Animal
- Now Playing6minHistory's Most Powerful Plants
- Now Playing6minThe Most Useful Fossils In The World
- Now Playing10minThe Last Time the Globe Warmed
- Now Playing9minThe Whole Saga of the Supercontinents
- Now Playing6minThe Search for the Earliest Life
Hot Mess
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing10minThe Link Between Extreme Weather and Climate Change
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing9minHow to Talk About Climate Change
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing5minBeef Is Bad For The Climate. Can We Make It Better?
- Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
Space Time
- Now Playing9minWhen Time Breaks Down
- Now Playing12minThe Real Science of the EHT Black Hole
- Now Playing10minTime Crystals!
- Now Playing10minHave Gravitational Waves Been Discovered?!?
- Now Playing12minThe Many Worlds of the Quantum Multiverse
- Now Playing13minWhite Holes
- Now Playing10minStrange Stars
- Now Playing13minDo Black Holes Create New Universes?
- Now Playing10minSelf-Replicating Robots and Galactic Domination
- Now Playing10minThe Eye of Sauron Reveals a Forming Solar System!
- Now Playing15minIs Pluto a Planet?
- Now Playing14minAre Virtual Particles A New Layer of Reality?
- Now Playing11minThe Fate of the First Stars
- Now Playing10minTelescopes on the Moon
- Now Playing10minThe Origin of Matter and Time
- Now Playing16minWhat Happens Inside a Proton?
- Now Playing7minCan A Starfox Barrel Roll Work in Space?
- Now Playing11minThe Future of Space Telescopes
- Now Playing10minWhat Do Stars Sound Like?
- Now Playing13minZeno's Paradox & The Quantum Zeno Effect
Beat Making Lab
- Now Playing2minWhat's In the Backpack?
- Now Playing5minBehind the Beat: Portobelo
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing2minField Trip: Prison Beats
- Now Playing3minGet Your Drums Right
- Now Playing10minHeartbeats of Fiji
- Now Playing2minMashup: National Anthems
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing4minDiablos (music video)
- Now Playing3minEpisode 1: Goma, Congo
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing4minPortobelo (music video)
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
Infinite Series
- Now Playing15minArrow's Impossibility Theorem
- Now Playing9minA Hierarchy of Infinities
- Now Playing8minHow to Divide by "Zero"
- Now Playing10minThe Assassin Puzzle
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing10minUnraveling DNA with Rational Tangles
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing14minInfinite Chess
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing11minSingularities Explained
- Now Playing9minBeyond the Golden Ratio
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing10minThe Assassin Puzzle
- Now Playing11minSingularities Explained
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing17minSplitting Rent with Triangles
- Now Playing16minHow to Break Cryptography
Idea Channel
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing6minWhat Do Santa and Wrestling Have In Common?
- Now Playing9minCan Video Games Become the Next Spectator Sport?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing8minDo Knock-Offs Prove the Value of a Brand?
- 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 Playing6minThe Retro Awesomeness of Adventure Time
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing5minA Visit to Mr. Monfre's Class
- Now Playing5minThere's No Such Thing as Online?!?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing4minThe Bronies Phenomenon
- Now Playing5minAre Olympic Competitors Geniuses?