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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 Playing8minHow Evolution Turned A Possum Into A Wolf
- Now Playing7minWhat Are The Most Important Science Images Ever?
- Now Playing4minThere Was No First Human
- Now Playing7minWhy Do Disney Princesses All Look Like Babies?
- Now Playing3minEight Incredible Deep Sea Oddities
- Now Playing3minElectric Buzzaloo: How Bees See the Invisible
- Now Playing6minVENOM: Nature's Killer Cocktails
- Now Playing3minWhat Color is the Universe?
- Now Playing7minWhy Do More Species Live Near The Equator?
- Now Playing2minCan Evolution Make an Eye? - 12 Days of Evolution #4
- Now Playing6minThe Science of Snowflakes
- Now Playing5minIs Inheritance Really All In Our Genes?
- Now Playing6minWhich Came First - Flowers or Bees?
- Now Playing7min3 Incredible Examples of Evolution Hidden In Your Body
- Now Playing6minPigeon Story: How the Rock Dove Became the Sky Rat
- Now Playing6minIs Santa Real? (A Scientific Analysis)
- Now Playing5minLife by the Numbers
- Now Playing5minThe Far Future of the Universe
- Now Playing5minLife by the Numbers
- Now Playing8minTuatara All the Way Down
Origin of Everything
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing9minWhy Do All Malls Look the Same?
- Now Playing9minThe Origin of Gender
- Now Playing10minThe 2nd Amendment Explained
- Now Playing7minWhy Do We Eat Popcorn at The Movies?
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing11minWhy Do So Many Religions Have Headwear?
- Now Playing9minThe Origin of Gender
- Now Playing7minThe True Origin of Killer Clowns
- Now Playing8minWhy Did Europeans Enslave Africans?
- Now Playing9minWhy Do We Drink Milk in School?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing10minWhat is Ethnicity?
- Now Playing7minWhy Does Santa Wear Red?
- Now Playing8minWhy Do People Have Pets?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing11minWhat is Racial Passing?
- Now Playing12minSix Historically True Facts about Money
- Now Playing8minWhy Do We Eat Artificial Flavors?
- Now Playing12minWhy Do We Have Housing Projects?
Two Cents
- Now Playing7minLove and Money
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- 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 Playing6minMoving Without Spending a Fortune
- Now Playing6minWomen Financial Superpowers
- Now Playing5minHow Cars Can Keep You Poor
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- 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 Playing7minIs the Stock Market Just a Big Casino?
- Now Playing5minBudgeting Basics
- Now Playing8min5 Ways People Are Dumb About Money
Monstrum
- 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 Playing12minThe Origins of 'Big Bug' Science Fiction
- Now Playing13minLeprechaun: From Gold-Loving Cobbler to Cultural Icon
- Now Playing12minDeath Worms: Fact or Fiction?
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- 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 Playing10minJorÅgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
Eons
- Now Playing6minThe Story of Saberteeth
- Now Playing6minHow Did Dinosaurs Get So Huge?
- Now Playing9minHow Vertebrates Got Teeth... And Lost Them Again
- Now Playing8minHow We Domesticated Cats (Twice)
- Now Playing8minHow Dinosaurs Coupled Up
- Now Playing9minWhen Insects First Flew
- Now Playing9minThe First and Last North American Primates
- Now Playing9minThe Fuzzy Origins of the Giant Panda
- Now Playing4minThe Strange Case of the Buzzsaw Jaws
- Now Playing8minThese Fossils Were Supposed To Be Impossible
- Now Playing10minWhen Rodents Rafted Across the Ocean
- Now Playing6minHow Sex Became A Thing
- Now Playing12minWhen We Tamed Fire
- Now Playing7minThe Great Snake Debate
- Now Playing9minWhat a Dinosaur Looks Like Under a Microscope
- Now Playing10minWhen Camels Roamed North America
- Now Playing11minWhen We First Walked
- Now Playing12minThe Island of Huge Hamsters and Giant Owls
- Now Playing12minWhen Mammals Only Went Out At Night
- Now Playing9minThe Evolution of the Heart (A Love Story)
Hot Mess
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing9minHow to Talk About Climate Change
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing10minThe Link Between Extreme Weather and Climate Change
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing5minWhy We Confuse Weather and Climate
- 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 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
Space Time
- Now Playing14minThe Big Bang, Cosmology part 1: Crash Course Astronomy #42
- Now Playing14minIs The Wave Function The Building Block of Reality?
- Now Playing11minNo Dark Matter = Proof of Dark Matter?
- Now Playing12minThe Alchemy of Neutron Star Collisions
- Now Playing9minCan a Circle Be a Straight Line?
- Now Playing14minAre Dark Matter And Dark Energy The Same?
- Now Playing15minDeep Time: Crash Course Astronomy #45
- Now Playing7minHow to Signal Aliens
- Now Playing16minWas the Gravitational Wave Background Finally Discovered?!?
- Now Playing9minIs There a Fifth Fundamental Force? + Quantum Eraser Answer
- Now Playing10minTelescopes of Tomorrow
- Now Playing10minHow to Capture Ghost Particles
- Now Playing11minWhy is the Earth Round and the Milky Way Flat?
- Now Playing11minMartian Evolution
- Now Playing11minHow Cosmic Inflation Flattened the Universe
- Now Playing13minAre We Living in an Ancestor Simulation? ft. Neil deGrasse T
- Now Playing10minZero-Point Energy Demystified
- Now Playing12minSolving the Impossible in Quantum Field Theory
- Now Playing12minHow Do We Know What Stars Are Made Of?
- Now Playing14minCould the Higgs Boson Lead Us to Dark Matter?
Beat Making Lab
- 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
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- 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 Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
Infinite Series
- Now Playing11minThe Geometry of SET
- Now Playing16minHow to Break Cryptography
- Now Playing14minBuilding an Infinite Bridge
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing8minTelling Time on a Torus
- Now Playing11minDefining Infinity
- Now Playing17minSplitting Rent with Triangles
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing14minMaking Probability Mathematical
- Now Playing11minWhat are Numbers Made of?
- Now Playing12minProving Pick's Theorem
- Now Playing10minInstant Insanity Puzzle
- Now Playing13minNetwork Mathematics and Rival Factions | Infinite Series
- 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 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)
Idea Channel
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing7minHow are Justin Bieber, Franz Liszt and Jerusalem Connected?
- Now Playing5minAre Memes and Internet Culture Creating a Singularity?
- Now Playing6minIs Minecraft the Ultimate Educational Tool?
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing4minAre LOLCats and Internet Memes Art?
- Now Playing4minRussian Meteorites and Surveillance Culture
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing8minIs a Tagged Instagram More Than Just a Photo?
- Now Playing5minNicolas Cage, Taoism, and YOLO
- Now Playing9minWill Kickstarter Replace Hollywood?
- Now Playing4minFrom Sherlock Holmes to 50 Shades of Grey
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- 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?