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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 Playing7minIncredible Tails Of Amazing Whales!
- Now Playing5minThe Superb Owl!
- Now Playing5minSunburn, Sweat and the Science of Summer!
- Now Playing4minWhy Seasons Make No Sense
- Now Playing5minThe Odds of Finding Life and Love
- Now Playing6minWhy Do Things Sound Scary?
- Now Playing4minWe're Mainly Microbe: Meet Your Microbiome
- Now Playing7minWhy Don't Ants Get Stuck in Traffic
- Now Playing5minThe Only Animal That Weeps
- Now Playing5minSpit: Everything You Never Wanted To Know
- Now Playing5minMuch A-Do About Hair
- Now Playing7minHow Baby Sea Turtles Find Their Way Home
- Now Playing5minWhy Your Brain Is In Your Head
- Now Playing2minThe Sun Is A Magnet!
- Now Playing6minIs Your Eye Color Real?
- Now Playing13minWhere Did Life Come From? (feat. PBS Space Time and Eons!)
- Now Playing6minThe Surprising Origin of Thanksgiving Foods
- Now Playing12minWhat's In a 20,000 Year-Old Cube of Ice?
- Now Playing4minThe Romantic Lure of Moonlight
- Now Playing6minInside an ICE CAVE! - Nature's Most Beautiful Blue
Origin of Everything
- Now Playing12minWhy Do Schools Teach Sex Education?
- Now Playing7minHow did Makeup, WWII, & Communism Create U.S. Healthcare?
- Now Playing7minHow Your Rubber Ducky Explains Colonialism
- Now Playing10minIs Breakfast the Most Important Meal?
- Now Playing7minHow Columbus Invented Cannibals
- Now Playing8minWhy is there a North and South Korea?
- Now Playing10minWhy was Pink for Boys and Blue for Girls?
- Now Playing8minWhy Do People Have Pets?
- Now Playing11minWhy Do We Have Private Prisons?
- 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 Playing7minWhen Men Wore High Heels
- Now Playing12minWhy Doesn't the US Have Paid Parental Leave?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing10minWhat is Ethnicity?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing7minIs Poisoned Halloween Candy a Myth?
- Now Playing7minHistory of the Word "Gay"
Two Cents
- Now Playing6minTop 5 Biggest Financial Scams
- Now Playing7minWhy It's More Expensive To Be Poor
- Now Playing6minHow to Ask for a Raise
- Now Playing7minWhat's The Real Cost of Dying?
- Now Playing7minShould I Invest In Cannabis Stocks?
- Now Playing7minFighting the Financial Pitfalls of the Supermarket
- Now Playing7minHow Retailers Stalk You Online
- Now Playing5minInsta-Everything
- Now Playing5minDo Kids Need to Learn About Money?
- Now Playing7minIs Your Side Hustle Hustling You?
- Now Playing7minWhich College Majors Give the Most Bang for Your Buck?
- Now Playing6minIs My Identity Safe From Hackers?
- Now Playing6minFighting the Wedding Industrial Complex
- Now Playing7minMoney, A Global Game of Trust
- Now Playing6minI'm Young & Healthy, Can I Skip Health Insurance?
- Now Playing9minHow Smart Entrepreneurs Think About PRICES!
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing6minDo I Need To Buy A House?
Monstrum
- Now Playing11minMapinguari: Fearsome Beast and Protector of the Amazon
- Now Playing12minHave Humans Always Feared Sharks?
- Now Playing12minAre Cyborgs Really Monsters?
- Now Playing12minWhat Hellhounds Reveal about Humans' Oldest Companion
- Now Playing10minTikbálang: The Filipino Nightmare Shapeshifter
- Now Playing13minUnicorns: Magical Icons or Violent Beasts?
- Now Playing9minPost-Dracula Vampires: From Anne Rice to Twilight
- Now Playing26minThe Killer Origins of the Werewolf
- Now Playing9minAdze: the Shapeshifting Firefly from West Africa
- Now Playing17minAlien Abduction and UFOs: Why Are Grays So Common?
- Now Playing12minBeyond the Supernatural Horror of the Nishi Daak Ghost
- Now Playing31minThe Werewolf's Modern Metamorphosis
- Now Playing7minWhat Dragons Say About Us
- Now Playing15minEgyptian Mummies: From Sacred Vessels to Scary Undead
- Now Playing10minWhy the Dragon is Central to Chinese Culture
- Now Playing7minEl Chupacabras, a Modern Mystery
- Now Playing8minBunyip: Australia's Mysterious Amphibian Monster
- 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
Eons
- Now Playing11minWas This Dinosaur a Cannibal?
- Now Playing8minHow a Hot Planet Created the World's Biggest Snake
- Now Playing8minThe Weird, Watery Tale of Spinosaurus
- Now Playing9minWhen Insects First Flew
- Now Playing12minWhen Giant Scorpions Swarmed the Seas
- Now Playing10minHow Plants Became Carnivores
- Now Playing8minHow a Mass Extinction Event Created the Amazon
- Now Playing7minThe Great Snake Debate
- Now Playing9minCould Neanderthals Use Symbolism?
- Now Playing4minThe Strange Case of the Buzzsaw Jaws
- Now Playing13minHow Plate Tectonics Transformed Los Angeles
- Now Playing10minHow Horses Took Over North America (Twice)
- Now Playing9minIt's Becoming Very Clear That Birds Are Not Normal
- Now Playing11minHow Earth's First, Unkillable Animals Saved the World
- Now Playing10minWhy We Only Have Ten Toes (It's a Long Story)
- Now Playing9minWhen a Giant Pterosaur Ruled the European Islands
- Now Playing8minWhen the Rainforests Collapsed
- Now Playing10minThe Last Time the Globe Warmed
- Now Playing12minWhat Was the Ancestor of Everything?
- Now Playing10minHow Horses Took Over North America (Twice)
Hot Mess
- 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 Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- 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 Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing5minWhat's actually the worst greenhouse gas?
- Now Playing5minWhat Can You Actually Do 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 Indigenous Communities Teach Us About Climate Change
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- 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 Playing5minWhy We Confuse Weather and Climate
Space Time
- Now Playing15minHow To Know If It's Aliens
- Now Playing17minThorium and the Future of Nuclear Energy
- Now Playing11minHow Asteroid Mining Will Save Earth
- Now Playing10minThe Origin of Matter and Time
- Now Playing16minHow Electron Spin Makes Matter Possible
- Now Playing9minHow Close To The Sun Can Humanity Get?
- Now Playing11minCitizen Science
- Now Playing19minAre Space and Time Real?
- Now Playing11minSuperluminal Time Travel + Time Warp Challenge Answer
- Now Playing14minWhy String Theory is Right
- Now Playing17minHow Does the Earth Really Move Through The Galaxy?
- Now Playing16minWhat If Gravity is Not A Fundamental Force?
- Now Playing16minWhat If The Speed of Light is NOT CONSTANT?
- Now Playing12minThe Missing Mass Mystery
- Now Playing9min5 Ways to Stop a Killer Asteroid
- Now Playing11minWill A New Neutrino Change The Standard Model?
- Now Playing11minS2: The Quantum Experiment that Broke Reality
- Now Playing13minQuantum Theory's Most Incredible Prediction
- Now Playing8minWhat Happens At The Edge Of The Universe?
- Now Playing15minDid Life on Earth Come from Space?
Beat Making Lab
- 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
- Now Playing2minHealth Worker Beat
- Now Playing4minTrapped In Paradise
- 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
Infinite Series
- Now Playing14minMaking Probability Mathematical
- Now Playing11minWhat are Numbers Made of?
- Now Playing12minProving Pick's Theorem
- Now Playing13minNetwork Mathematics and Rival Factions | Infinite Series
- Now Playing10minInstant Insanity Puzzle
- Now Playing17minSplitting Rent with Triangles
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing11minDefining Infinity
- Now Playing8minTelling Time on a Torus
- Now Playing16minHow to Break Cryptography
- Now Playing14minBuilding an Infinite Bridge
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing11minThe Geometry of SET
- Now Playing14minKill the Mathematical Hydra
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
- Now Playing13minWhat is a Random Walk?
- Now Playing11minWhat was Fermat's "Marvelous" Proof?
- Now Playing14minCan We Combine pi & e to Make a Rational Number?
- Now Playing8minTelling Time on a Torus
- Now Playing8minThe Multiplication Multiverse
Idea Channel
- 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 Playing8minIs a Tagged Instagram More Than Just a Photo?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing4minRussian Meteorites and Surveillance Culture
- Now Playing4minAre LOLCats and Internet Memes Art?
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing4minAre Mashups the End of Music Genres?
- 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 Playing7minHow are Justin Bieber, Franz Liszt and Jerusalem Connected?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing4minThe Bronies Phenomenon
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?