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Now Playing15minHow One Drum Beat Changed Hip Hop Forever
Now Playing9minWhat If Neandertals Buried Their Dead?
Now Playing10minWhen Our Culture Changed Our DNA
Now Playing18minWhat If The Universe Is Math?
Now Playing16minThe New Science of Moon Formation
Now Playing10minThese Creatures Were Darwin's Greatest Enemy
Now Playing14minWhy Embarrassment Is Actually Good For You
Now Playing14minHave We Made Any Progress on Climate Change? Here's The Data
Now Playing16minHow Can Matter Be Both Liquid And Gas?
Now Playing8minHow Did Lucy Live and Die?
It's Okay to Be Smart
Now Playing8minAsteroids, Meteors, and Comets... OH MY!!!
Now Playing6minThe Most Extreme Life Forms On Earth... And Beyond?
Now Playing4minA Slice of Pizza Science!
Now Playing5min23 Reasons to be Cheerful (Thanks to Science!)
Now Playing5minThe Scale of the Universe
Now Playing4minMy Date With A Giant Pacific Octopus!
Now Playing6minThe Surprising Origin of Thanksgiving Foods
Now Playing6minDoomsday Machines
Now Playing5minYour #ScienceWoman Heroes
Now Playing2minThe Sun Is A Magnet!
Now Playing6minThe Most Extreme Life Forms On Earth... And Beyond?
Now Playing7minHow Do Glaciars Move?
Now Playing6minThe Amazing Science of DUST?
Now Playing7minTheory vs Hypothesis vs Law
Now Playing7minHow to be Crushed by the Atmosphere!
Now Playing2minWhy Do Men Have Nipples? - 12 Days of Evolution #7
Now Playing6minThomas Jefferson and The Giant Moose
Now Playing6minWho Shares Your Birthday?
Now Playing6minAre You Afraid of Holes?
Now Playing8minThe Deadpool Salamander That Can Regrow Limbs
Origin of Everything
Now Playing7minIs Poisoned Halloween Candy a Myth?
Now Playing8minWhy Do Kids Have Their Own Bedrooms?
Now Playing8minWhy Do Women Shave Their Legs?
Now Playing7minThe True Origin of Killer Clowns
Now Playing12minWhy Do Schools Teach Sex Education?
Now Playing9minIs the Rosa Parks Story True?
Now Playing7minHow Your Rubber Ducky Explains Colonialism
Now Playing11minWhy Do So Many Religions Have Headwear?
Now Playing10minHow WWII Created Godzilla & Mecha Robots
Now Playing9minWhy Do We Drink Milk in School?
Now Playing10minHow Did Makeup Ads Go From Style to Science?
Now Playing5minWhat Was Jesus' Real Name?
Now Playing7minIs Poisoned Halloween Candy a Myth?
Now Playing9minWhat If Islam Conquered Europe?
Now Playing11minWhat is Racial Passing?
Now Playing10minWhy Is There a Minimum Wage?
Now Playing7minIs Poisoned Halloween Candy a Myth?
Now Playing7minHistory of the Word "Gay"
Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
Now Playing10minWhat is Cultural Appropriation?
Two Cents
Now Playing7minIs It Even POSSIBLE to Save for Retirement?
Now Playing6minDo I Need To Buy A House?
Now Playing7minLove and Money
Now Playing5minHow Cars Can Keep You Poor
Now Playing6minMoving Without Spending a Fortune
Now Playing6minWomen Financial Superpowers
Now Playing6minHacking Your Brain to Get Out Of Debt
Now Playing7minCan You Really Retire in Your 30s?
Now Playing6minWhat Are The Most Lucrative Trades?
Now Playing8min5 Strange Investor Crazes!
Now Playing5minHow are credit scores calculated?
Now Playing5minHow Do Your Tax Dollars Get Spent?
Now Playing6minThe Ugly Truth About Airline Miles
Now Playing6minShould You Break Up With Your Big Bank?
Now Playing4minWhat is the DOW?
Now Playing6minDoes Wealth Make You Meaner?
Now Playing6minWhat the Heck Are Mutual Funds?
Now Playing5minBudgeting Basics
Now Playing7minIs the Stock Market Just a Big Casino?
Now Playing6minHow Do You Actually Buy A House?
Monstrum
Now Playing15minEgyptian Mummies: From Sacred Vessels to Scary Undead
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 Playing7minKasagonagá: The Cute, Kind Monster We All Need Right Now
Now Playing7minRelease the Kraken!
Now Playing7minAre White Walkers Really Nordic Zombies?
Now Playing12minDon't Let Them In! The Urban Legends of Black-Eyed Children
Now Playing12minTaotie: The Mystery of Chinese Mythology's Famous Glutton
Now Playing11minMapinguari: Fearsome Beast and Protector of the Amazon
Now Playing12minHave Humans Always Feared Sharks?
Now Playing12minWhat Hellhounds Reveal about Humans' Oldest Companion
Now Playing9minPost-Dracula Vampires: From Anne Rice to Twilight
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
Eons
Now Playing6minThe Most Useful Fossils In The World
Now Playing9minThe Whole Saga of the Supercontinents
Now Playing10minThe Last Time the Globe Warmed
Now Playing6minHistory's Most Powerful Plants
Now Playing8minWhere Did Viruses Come From?
Now Playing9minThe Sudden Rise of the First Colossal Animal
Now Playing8minHow Ankylosaurs Got Their Clubs
Now Playing11minWhen Penguins Went From The Sky To The Sea
Now Playing8minThe Mystery of the Eocene's Lethal Lake
Now Playing10minHow Pollination Got Going Twice
Now Playing7minWhy Do Things Keep Evolving Into Crabs?
Now Playing9minThe Rise and Fall of the Bone-Crushing Dogs
Now Playing11minThe Story of the Dino Stampede
Now Playing11minHow the Starfish Got Its Arms
Now Playing10minWhen Ichthyosaurs Led a Revolution in the Seas
Now Playing10minThe Facts About Dinosaurs & Feathers
Now Playing10minHow a Supervolcano Made the Cenozoic's Coolest Fossils
Now Playing8minThe Ancient Human Species With A Missing Body
Now Playing8minWhen Trees Took Over the World
Now Playing10minHow Plants Caused the First Mass Extinction
Hot Mess
Now Playing7minWhat's The Best Car For The Climate?
Now Playing5minWhat Happened to Nuclear Power?
Now Playing3minCould climate change make you allergic to meat?
Now Playing6minWould Your Neighbors Save You From a Flooding Home?
Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
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?
Now Playing5minWhy Climate Change is Unjust
Now Playing5minWhat Happened to Nuclear Power?
Now Playing8minHow One Conservative Texas Town Went 100% Renewable
Now Playing5minWhat's actually the worst greenhouse gas?
Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
Now Playing4minWhy Are Hurricanes Getting Stronger?
Now Playing5minCan Farms and Forests Coexist?
Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
Now Playing13minThe Rise of Climate Fiction feat. Lindsay Ellis & Amy Brady
Now Playing12minOur Food System is Rigged feat. Sheril Kirshenbaum
Now Playing4minHow Much Energy Does the Internet Use?
Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
Space Time
Now Playing8minLIGO's First Detection of Gravitational Waves!
Now Playing15minHow Many Universes Are There?
Now Playing15minMapping the Multiverse
Now Playing9minWhy the Big Bang Definitely Happened
Now Playing12minHow Black Holes Kill Galaxies
Now Playing14minThe NEW Crisis in Cosmology
Now Playing10minStrange Stars
Now Playing13minCould The Universe Be Inside A Black Hole?
Now Playing11minCitizen Science
Now Playing12minWhat is Energy?
Now Playing9minThe Treasures of Trappist-1
Now Playing15minHave We SOLVED The Black Hole Information Paradox with Wormh
Now Playing18minHow the Higgs Mechanism Give Things Mass
Now Playing12minThe Many Worlds of the Quantum Multiverse
Now Playing10minCan You Trust Your Eyes in Spacetime?
Now Playing13minAnti-gravity and the True Nature of Dark Energy
Now Playing15minHow Do Quantum States Manifest In The Classical World?
Now Playing8minIs The Alcubierre Warp Drive Possible?
Now Playing6minThe Race to a Habitable Exoplanet - Time Warp Challenge
Now Playing12minAnti-Matter and Quantum Relativity
Beat Making Lab
Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
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 Playing3minBehind The Beat: First Beat Making Lab (2011)
Now Playing4minPortobelo (music video)
Now Playing3minSampling w/ Flip Flops and Ski Beatz
Now Playing2minHealth Worker Beat
Now Playing4minTrapped In Paradise
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
Infinite Series
Now Playing15minDissecting Hypercubes with Pascal's Triangle
Now Playing11minVoting Systems and the Condorcet Paradox
Now Playing14minInfinite Chess
Now Playing11minSingularities Explained
Now Playing9minBeyond the Golden Ratio
Now Playing8minHow to Divide by "Zero"
Now Playing10minThe Assassin Puzzle
Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
Now Playing14minTopology Riddles | Infinite Series
Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
Now Playing10minUnraveling DNA with Rational Tangles
Now Playing9minA Hierarchy of Infinities
Now Playing15minArrow's Impossibility Theorem
Now Playing17minHacking at Quantum Speed with Shor's Algorithm
Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
Now Playing9minBeyond the Golden Ratio
Now Playing11minTopology vs "a" Topology
Now Playing15minArrow's Impossibility Theorem
Now Playing11minThe Geometry of SET
Idea Channel
Now Playing5minAre You a Hipster?
Now Playing3minIs the Web Browser Replacing the Art Gallery?
Now Playing8minIs Developing Artificial Intelligence (AI) Ethical?
Now Playing3minSuper Mario Brothers as Surrealist Art?
Now Playing6minIs Futurama the Best Argument Against Transhumanism?
Now Playing6minAre Virtual Video Game Economies Becoming Real?
Now Playing8minIs Sad Music Actually Sad?
Now Playing3minAre Holograms Nostalgia or a New Form of Art?
Now Playing3minAre Holograms Nostalgia or a New Form of Art?
Now Playing9minDoes Math Really Exist?
Now Playing6minIs Doctor Who a Religion?
Now Playing4minThe Bronies Phenomenon
Now Playing7minCan Dungeons & Dragons Make You Confident & Successful?
Now Playing6minAre MP3s & Vinyl Better than Live Music?
Now Playing6minWhat do MP3s and Magic Spells Have in Common?
Now Playing4minHas the Microsoft Kinect revolutionized art?
Now Playing5minIs Facebook Changing Our Identity?
Now Playing4minIs Twitter the Newest Form of Literature?
Now Playing8minIs Piracy Helping Game of Thrones?
Now Playing9minIs Community a Postmodern Masterpiece?