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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 Playing6min97% of Climate Scientists Really Do Agree
- Now Playing6minWho Shares Your Birthday?
- Now Playing11minThe Dinosaur On Your Thanksgiving Table
- Now Playing2minAre Humans Still Evolving? 12 Days of Evolution #11
- Now Playing2minCarbon and Oxygen and You: Explained
- Now Playing5minThe Scale of the Universe
- Now Playing6minDNA Doesn't Look Like What You Think!
- Now Playing5minHow Many Heartbeats Do We Get?
- Now Playing6minThe Raisin Bran Effect
- Now Playing6minAre You Afraid of Holes?
- Now Playing6minPay Attention!
- Now Playing6minWhat Do Raindrops Really Look Like?
- Now Playing6minHow the Toilet Changed History
- Now Playing6min1 MILLION Species Could Go Extinct... Here's Why.
- Now Playing7minWhy Are We The Only Humans Left?
- Now Playing9minWhat Color Is A Banana?
- Now Playing3minWhat is Wind?
- Now Playing2minWhy Are There Still Monkeys? - 12 Days of Evolution #10
- Now Playing5minShould You Eat Everyday?
- Now Playing7minZombie Parasites!
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 Playing7minIs Poisoned Halloween Candy a Myth?
- Now Playing7minHistory of the Word "Gay"
- Now Playing10minWhat is Ethnicity?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing7minWhen Men Wore High Heels
- Now Playing12minWhy Doesn't the US Have Paid Parental Leave?
- Now Playing8minWhy Was Crossdressing Illegal?
- Now Playing8minWhy Do Women Give Birth Lying Down?
- Now Playing8minWhen DId Marriage Become about Love?
- Now Playing7minWhy Do We Say "Asian American" Not "Oriental"?
- Now Playing8minWhy Do People Have Pets?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing7minHow Your Rubber Ducky Explains Colonialism
- Now Playing10minIs Breakfast the Most Important Meal?
- Now Playing8minWhy is there a North and South Korea?
- Now Playing7minHow Columbus Invented Cannibals
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 Playing6minWhat the Heck Are Mutual Funds?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing4minWhat is the DOW?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minWomen Financial Superpowers
- Now Playing6minMoving Without Spending a Fortune
Monstrum
- Now Playing7minRelease the Kraken!
- Now Playing7minAre White Walkers Really Nordic Zombies?
- Now Playing14minThe Untold Secrets of Pokémon's Monster Mythology
- Now Playing12minTaotie: The Mystery of Chinese Mythology's Famous Glutton
- Now Playing12minDon't Let Them In! The Urban Legends of Black-Eyed Children
- Now Playing13minFire Cat or Fire Cart? The History of Japan's Kasha
- Now Playing11minMari Lwyd: The Skeleton Horse's Deep Past with Christmas
- Now Playing13minUncovering the Enigma: Sasquatch Sightings
- Now Playing7minKasagonagá: The Cute, Kind Monster We All Need Right Now
- Now Playing8minBunyip: Australia's Mysterious Amphibian Monster
- Now Playing10minWhy the Dragon is Central to Chinese Culture
- Now Playing7minEl Chupacabras, a Modern Mystery
- Now Playing15minEgyptian Mummies: From Sacred Vessels to Scary Undead
- Now Playing31minThe Werewolf's Modern Metamorphosis
- Now Playing12minBeyond the Supernatural Horror of the Nishi Daak Ghost
- Now Playing7minWhat Dragons Say About Us
- 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 Playing12minWhat Hellhounds Reveal about Humans' Oldest Companion
Eons
- Now Playing8minHow Ankylosaurs Got Their Clubs
- Now Playing8minWhere Did Viruses Come From?
- Now Playing9minThe Sudden Rise of the First Colossal Animal
- Now Playing11minWhen Penguins Went From The Sky To The Sea
- Now Playing8minThe Mystery of the Eocene's Lethal Lake
- Now Playing6minThe Most Useful Fossils In The World
- Now Playing10minThe Last Time the Globe Warmed
- Now Playing9minThe Whole Saga of the Supercontinents
- Now Playing6minHistory's Most Powerful Plants
- 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 Playing8minThe Ancient Human Species With A Missing Body
- Now Playing10minThat Time The Ocean Lost (Almost) All Its Oxygen
- 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 Playing11minHow the Starfish Got Its Arms
- Now Playing11minThe Story of the Dino Stampede
- Now Playing7minThe Creature That Stumped Darwin
Hot Mess
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing4minHow Much Energy Does the Internet Use?
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing5minWhy Climate Change is Unjust
- Now Playing5minWhat Happened to Nuclear Power?
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing7minWhat's The Best Car For The Climate?
- Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing12minOur Food System is Rigged feat. Sheril Kirshenbaum
- Now Playing13minThe Rise of Climate Fiction feat. Lindsay Ellis & Amy Brady
- Now Playing4minHow Much Energy Does the Internet Use?
- Now Playing5minWhat Happened to Nuclear Power?
- Now Playing5minWhat's actually the worst greenhouse gas?
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
Space Time
- Now Playing10minTelescopes on the Moon
- Now Playing10minThe Origin of Matter and Time
- Now Playing7minCan A Starfox Barrel Roll Work in Space?
- Now Playing16minWhat Happens Inside a Proton?
- 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 Playing10minSelf-Replicating Robots and Galactic Domination
- Now Playing12minThe Real Science of the EHT Black Hole
- Now Playing9minWhen Time Breaks Down
- Now Playing10minTime Crystals!
- Now Playing13minDo Black Holes Create New Universes?
- Now Playing10minStrange Stars
- Now Playing13minWhite Holes
- Now Playing12minThe Many Worlds of the Quantum Multiverse
- Now Playing10minHave Gravitational Waves Been Discovered?!?
- Now Playing8minShould the First Mars Mission Be All Women?
- Now Playing10minShould Space be Privatized?
- Now Playing10minHow Much Information is in the Universe?
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 Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- 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 Playing5minBehind the Beat: Portobelo
- Now Playing2minWhat's In the Backpack?
- Now Playing3minPanama: Meet the Kids Behind the Beats
Infinite Series
- Now Playing8minAre Prime Numbers Made Up?
- Now Playing9minProving Brouwer's Fixed Point Theorem
- Now Playing14minMaking Probability Mathematical
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing10minUnraveling DNA with Rational Tangles
- Now Playing12minProving Pick's Theorem
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
- Now Playing9minCan You Solve the Poison Wine Challenge?
- Now Playing11minTopology vs "a" Topology
- Now Playing13minNetwork Mathematics and Rival Factions | Infinite Series
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing11minWhat are Numbers Made of?
- Now Playing14minInfinite Chess
- Now Playing11minCan We Hear Shapes?
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing10minInstant Insanity Puzzle
- Now Playing14minCan We Combine pi & e to Make a Rational Number?
Idea Channel
- Now Playing8minIs a Tagged Instagram More Than Just a Photo?
- Now Playing4minFrom Sherlock Holmes to 50 Shades of Grey
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- Now Playing5minNicolas Cage, Taoism, and YOLO
- Now Playing9minWill Kickstarter Replace Hollywood?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing4minRussian Meteorites and Surveillance Culture
- Now Playing4minAre LOLCats and Internet Memes Art?
- Now Playing7minHow are Justin Bieber, Franz Liszt and Jerusalem Connected?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing5minAre Memes and Internet Culture Creating a Singularity?
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing6minIs Minecraft the Ultimate Educational Tool?
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing4minThe Bronies Phenomenon
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing5minThere's No Such Thing as Online?!?