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Creepy CrawliesBugs are the base of the food chain, food for just about everything else, but to start the process, they too must eat.

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Creepy CrawliesBugs are the base of the food chain, food for just about everything else, but to start the process, they too must eat.0Creepy CrawliesRutting deer and flirting love birds might be what people think of with animal courtship, but even bugs need to breed, and they face all the same challenges of winning a mate and raising their young.

4th and Forever

• Now Playing21minWelcome to Long Beach, Baby
• Now Playing21minGo Hard or Go Home
• Now Playing21minReality Check
• Now Playing21minDefend Our Territory
• Now Playing21minThey're Rich and We're Not
• Now Playing21minLive for the Moment
• Now Playing21minWe Better Battle
• Now Playing21minBack on Track
• Now Playing21minWe're Not Finished, Yet
• Now Playing21minThere's No Tomorrow

4th and Forever: Alcoa

• Now Playing35minAgainst all Odds
• Now Playing30minDefending the Legacy
• Now Playing31minThe Battle of Pistol Creek, Part 1
• Now Playing28minThe Battle of Pistol Creek, Part 2
• Now Playing29minCleaning the Wounds
• Now Playing32minThe Push Begins
• Now Playing33minHome Stretch
• Now Playing34minNever a Doubt

4th and Forever: DeSoto

• Now Playing42minGrowing Pains
• Now Playing42minRestless & Young
• Now Playing42minDuncanville or Doom
• Now Playing42minHomecoming
• Now Playing42minThe Hill
• Now Playing42minLong Time Coming
• Now Playing42minWin or Go Home
• Now Playing42minWhat We Must Do

4th and Forever: Muck City

• Now Playing37minThe Stage Is Set
• Now Playing38minA Rocky Start
• Now Playing34minTensions Mount
• Now Playing35minA Muck Homecoming
• Now Playing33minRabbit Hunt
• Now Playing31minDevastating Blow
• Now Playing30minMuck Bowl Madness
• Now Playing27minThere Can Be Only One

A Curious World

• Now Playing7minBeyond Gravity
• Now Playing9minBlack Holes
• Now Playing8minAncient Builders
• Now Playing6minLive Long & Prosper
• Now Playing7minUnderwater Worlds
• Now Playing9minThe Universe
• Now Playing8minWeather
• Now Playing7minFirst Life On Earth
• Now Playing6minSuper-Volcanoes
• Now Playing8minChanging Earth
• Now Playing6minWhy Do We Dream?
• Now Playing8minTraits
• Now Playing9minExtraterrestrials
• Now Playing8minTime Tellers
• Now Playing7minHuman Migration
• Now Playing9minCan We Colonize Mars?
• Now Playing9minCould Robots Rule The World?
• Now Playing9minNanomedicine Revolution
• Now Playing10minCreativity Or Madness
• Now Playing11minSupreme Human Machine

Adolf Galland Legacy

• Now Playing37minAdolf Galland Legacy: Part One: Ace Of The Luftwaffe
• Now Playing40minAdolf Galland Legacy: Part Two: The Fighter General
• Now Playing47minAdolf Galland Legacy: Part Three: Clash Of Legends

Age Of Big Cats

• Now Playing52minOrigins
• Now Playing52minWorld Domination
• Now Playing52minSurvivors

Amazing Dinoworld

• Now Playing49minThe Feather Revolution
• Now Playing49minThe World of Sea Monsters

American Icons

• Now Playing13minAbe Lincoln
• Now Playing13minBabe Ruth
• Now Playing14minFDR
• Now Playing14minTom Edison
• Now Playing12minMark Twain
• Now Playing11minThomas Jefferson
• Now Playing13minGeorge Washington
• Now Playing14minEleanor Roosevelt
• Now Playing11minWalt Disney

Ancient Earth

• Now Playing14minThe Permian
• Now Playing11minThe Triassic
• Now Playing15minThe Cretaceous

Ancient Earth: Dinosaurs of the Frozen Continent

• Now Playing51minTo the Ends of the Earth
• Now Playing51minWhat Lies Beneath

Ancient Engineering

• Now Playing50minRoads That Changed the World
• Now Playing50minThe Great Wall of China
• Now Playing50minSecrets of the Pyramids
• Now Playing50minRise of the Super-Castle
• Now Playing50minSecrets of Notre Dame
• Now Playing50minSecrets Of Angkor Wat
• Now Playing50minThe Power Of Water
• Now Playing50minHistory's Greatest Ships
• Now Playing50minStone Age Secrets
• Now Playing50minThe Taj Mahal And The Golden Age Of Islam
• Now Playing51minEarliest Arenas: The Colosseum
• Now Playing51minHow Gold Changed The World
• Now Playing51minHistory's Deadliest Weapons
• Now Playing51minNavigating The Globe
• Now Playing51minTools & Tech
• Now Playing51minAnatomy Of The House
• Now Playing51minExtreme Buildings
• Now Playing51minHistory's Hidden Marvels
• Now Playing51minAncient Waterways
• Now Playing51minBuilding Bridges

Ancient Yellowstone

• Now Playing15minAlien Life
• Now Playing14minFrozen Archeology
• Now Playing14minThe Petrified Forest
• Now Playing14minMammoth Country
• Now Playing22minThe Last Triceratops
• Now Playing17minPast and Future Yellowstone

Art Ninja, Part 1

• Now Playing29minDay Of The Birdman
• Now Playing29minDay Of The Disguise
• Now Playing29minDay Of The Goblins
• Now Playing29minDay Of The Lucky Trunks
• Now Playing29minDay Of The Angry Cloud
• Now Playing28minDay Of The Decoration
• Now Playing29minDay Of The Trash
• Now Playing29minDay Of The Aliens
• Now Playing29minDay Of The Bug
• Now Playing29minDay Of The Dog
• Now Playing29minDay Of The Prank
• Now Playing29minDay Of The Game
• Now Playing29minDay Of The Spider
• Now Playing29minDay Of The Diamond
• Now Playing29minDay Of The Time Machine
• Now Playing29minDay Of The Dragon
• Now Playing29minDay Of The Baby
• Now Playing29minDay Of The Band
• Now Playing28minDay Of The Werewolf
• Now Playing28minDay Of The Six Pack
• Now Playing29minDay Of The Animals
• Now Playing29minDay Of The Match
• Now Playing29minDay Of The Egg
• Now Playing29minDay Of The Yeti
• Now Playing29minDay Of The Dream

Art Ninja, Part 2

• Now Playing21minDay Of The Prophecy
• Now Playing21minDay Of The Magician
• Now Playing21minDay Of The Ghost
• Now Playing21minDay Of The Zapper
• Now Playing21minDay Of The Flashback

Awesome Adventure

• Now Playing21minNew Zealand
• Now Playing21minMaui
• Now Playing21minPacific North West
• Now Playing21minPoconos
• Now Playing21minAustralia
• Now Playing21minSan Diego
• Now Playing21minPittsburgh
• Now Playing20minCancun
• Now Playing20minPanama
• Now Playing21minHawaii
• Now Playing20minThailand
• Now Playing20minCuracao
• Now Playing20minIceland
• Now Playing20minMarco Island
• Now Playing20minSan Francisco
• Now Playing20minColorado
• Now Playing20minPhiladelphia
• Now Playing20minUtah
• Now Playing20minCroatia
• Now Playing20minQuebec
• Now Playing20minNew Orleans
• Now Playing20minPittsburgh
• Now Playing20minSouthern California

Becoming Xtraordinary presented by Bear Grylls

• Now Playing23minThe G.O.A.T (Roger Federer) And The Racer (Danica Patrick)
• Now Playing23minThe Star (Julia Roberts) And The Fighter (Wladimir Klitschko)
• Now Playing23minThe Keeper (Maddie Hinch) And The Explorer (Ranulph Fiennes)
• Now Playing23minThe Survivor (Bear Grylls) And The Boss (Ursula Burns)
• Now Playing24minThe Inventor (Robert Langer) And The Rebel (Frances Arnold)
• Now Playing23minThe Friend (Courteney Cox) And The Showman (Channing Tatum)
• Now Playing25minThe Magician (Steven Frayne) And The Captain (Kate Richardson-Walsh)
• Now Playing23minThe President (F.W. De Klerk) And The Pioneer (Valerie Amos)
• Now Playing24minThe Golden Girl (Kelly Holmes) And The Spaceman (Tim Peake)
• Now Playing26minThe Firefighter (Sabrina Cohen-Hatton) And The Bionic Man (Mark Ormrod)

Besieged Fortresses, Battles Of Legend

• Now Playing51minAcre: Clash of the Titans
• Now Playing50minConstantinople: The Emperor's Last Stand
• Now Playing50minRhodes: The Ultimate Battle
• Now Playing50minThe Great Siege of Malta

Beyond The Spotlight

• Now Playing51minKristen Bell
• Now Playing52minSamuel L. Jackson & Latanya Richardson Jackson
• Now Playing52minLeVar Burton
• Now Playing52minMrBeast
• Now Playing52minJoe Namath

Big Picture Earth: Natural Sound

• Now Playing31minCumberland Island
• Now Playing31minStonehenge
• Now Playing31minNabataean Lost Kingdom Of Petra
• Now Playing31minColorado Canyons Of Time
• Now Playing31minFountains Abbey
• Now Playing31minThe Oracle At Delphi
• Now Playing31minCanyons Of The Ancient Ones
• Now Playing31minThe Young Earth Of The Reykjanes Peninsula
• Now Playing31minCentral Park, New York
• Now Playing31minIceland Glacier Lagoon
• Now Playing31minSlot Canyons Of Utah
• Now Playing31minKatahdin Woods And Water
• Now Playing30minMoods Of Venice
• Now Playing31minThe Acropolis Of Athens
• Now Playing31minDesert Of Wadi Rum
• Now Playing31minOkefenokee Blackwater Swamp
• Now Playing31minShooter's Island Of New York City
• Now Playing31minThe Terminal Basin Of Mono Lake
• Now Playing31minGreatest Hits
• Now Playing31minAlewives Eternal Return

Blindspots

• Now Playing27minLos Angeles
• Now Playing25minSeattle / Vancouver
• Now Playing26minNew York City
• Now Playing24minLondon
• Now Playing25minUnited Kingdom
• Now Playing26minTexas
• Now Playing25minGermany
• Now Playing25minSwitzerland
• Now Playing25minTokyo
• Now Playing25minOsaka / Kyoto

Bright Now, Part 1

• Now Playing12minParasite Planet
• Now Playing22minMystery Signal from Space
• Now Playing9minHacking our Microbiome
• Now Playing18minAfrican Animal Rescue
• Now Playing17minSearch for Japan's Lost Supersub
• Now Playing21minHunt for the U-576
• Now Playing9minSkinny Genes
• Now Playing9minSaving Venice
• Now Playing11minMessage From Space?
• Now Playing22minBlockchain Revolution
• Now Playing12minThe Wright Brothers: Bravery
• Now Playing10minNew Firefighting Tech
• Now Playing13minOctopus Encounters
• Now Playing10minSuper Sea Slugs
• Now Playing11minRebirth of an Underwater Forest
• Now Playing11minPredicting A Pro
• Now Playing12minSaving Tokyo
• Now Playing14minFirst In The Sky
• Now Playing12minThe Race to Forecast Weather
• Now Playing10minBay of Crocs
• Now Playing13minThe Mystery of U-455
• Now Playing11minMonkey Island
• Now Playing13minNight At The Aquarium
• Now Playing10minWolves and Tanks
• Now Playing13minIberian Lynx: Saving the World's Most Endangered Cat

Bright Now, Part 2

• Now Playing14minKetamine: From Street Drug to Lifesaver
• Now Playing13minTiny House: Living Off the Grid
• Now Playing11minRaising A Genius
• Now Playing12minCan You Learn to Be Funny?
• Now Playing11minCoffee Buzz
• Now Playing10minChungungo: The World's Smallest Otter
• Now Playing12minWomen with ADHD
• Now Playing15minVeggie Power
• Now Playing16minPompeii: Behind the Scenes
• Now Playing15minGrowing up Hadza
• Now Playing13minEvolution of Flavor
• Now Playing14minMother Of The Everglades
• Now Playing13minCatching Florida's Apex Predator
• Now Playing13minThe Sweet & Sour Of Florida Sugar
• Now Playing14minFlorida's Garden of Eden
• Now Playing12minFrom The Frontlines Of Covid19
• Now Playing12minAmerica's Wildest Cat & Dog Rivalry
• Now Playing12minThe Birth Of Mar-a-Lago
• Now Playing12minPreparing for Hurricanes
• Now Playing15minThe Road To Florida
• Now Playing12minThe Shark Whisperer

Butterfly Effect

• Now Playing25minAlexander The Great
• Now Playing25minRace To The Moon
• Now Playing25minA Bus For Martin Luther King
• Now Playing25minKing Philippe Of France And Richard The Lionheart Of England
• Now Playing25minConfucius And Chinese Thought
• Now Playing25minGenghis Khan: The Empire Of The Steppes
• Now Playing25minDarwin Discovers The World
• Now Playing25minChernobyl: A Reactor Out Of Control
• Now Playing25minSekigahara: The Battle Of The Samurais
• Now Playing25minEinstein And The Manhattan Project
• Now Playing25minRome Vs. Barbarians
• Now Playing25minInternet: The Origins Of The Web
• Now Playing25minThe Birth Of Rock
• Now Playing27minAl Capone: Child Of Prohibition
• Now Playing27minThe Suffragettes: Battle For The Ballot Box
• Now Playing27minThe Gold Rush: For A Fistful Of Nuggets
• Now Playing27minCortés At The Heart Of The Aztec Empire
• Now Playing27minCuba: Nuclear Standoff
• Now Playing27minBlack Death: The Invisible Enemy
• Now Playing27minIstanbul: From One Empire To The Other
• Now Playing27minAral: A Sea For Cotton
• Now Playing27minThe Fall Of Quebec: France Loses America
• Now Playing27minThe Fronde: An Overthrow Of The Power
• Now Playing27minThe Olympic Games: A Mirror To Society
• Now Playing27minGutenberg: A Visionary Inventor

Casey's Wild Backyard

• Now Playing6minGrizzly
• Now Playing7minBison
• Now Playing6minMountain Lion
• Now Playing6minSnakes

Celts: The Untold Story

• Now Playing51minDawn Of The Celts
• Now Playing51minThe Art And War
• Now Playing49minSkyfall

Changing Ocean Asia

• Now Playing25minSinking Cities
• Now Playing28minExtreme Weather. Powerful Tsunamis.
• Now Playing25minUrban Oceans. Super Corals.
• Now Playing29minSea Level Rise and Engineering Solutions

Classic Cars

• Now Playing11minPierce Arrow
• Now Playing13minDuesenberg
• Now Playing9minTerraplane
• Now Playing12minOldsmobile
• Now Playing11minMustang

Curiosity Retreats Lectures

• Now Playing1hr 2minThe Future of the Mind
• Now Playing57minThe Future of the Internet
• Now Playing52minFrontiers Of Science
• Now Playing59minThe Future of Nanotechnology
• Now Playing45minScience of Happiness
• Now Playing49minA Universe of Big Numbers
• Now Playing57minDiscovery in Cosmology & Particle Physics
• Now Playing24minSuper Brain
• Now Playing59minThe Creative Brain
• Now Playing57minDigital Transcendence
• Now Playing1hr 3minWonders Of The Ocean
• Now Playing1hr 3minThe Art Of Discovery
• Now Playing1hr 5minThe Human Face Of Big Data
• Now Playing1hr 1minThe Future Of The Brain
• Now Playing51minOur Virtual Reality
• Now Playing1hr 1minTo Pluto And Beyond
• Now Playing1hr 1minOur Mathematical Universe
• Now Playing1hr 1minThe Human Journey: A Genetic Odyssey
• Now Playing60minLessons From The Presidents: Balancing Work, Love And Play
• Now Playing59minThe Big Picture

Curious Minds: Deepak Chopra

• Now Playing30minPerfect Being, God & Consciousness
• Now Playing28minImplications Of Astrobiology: Understanding Our Unseen Reality
• Now Playing30minCosmic Jazz & Quantum Consciousness
• Now Playing28minBiofield Science & The Future Of Healing
• Now Playing33minEssential Conundrums: What Is & What Matters
• Now Playing39minIs There A Connection Between Quantum Mechanics And Consciousness?
• Now Playing29minRevisiting Evolution Of Species
• Now Playing31minCreative Cosmos
• Now Playing32minThe Knobe Effect: The World As We Are
• Now Playing43minA Beautiful Question, Part 1
• Now Playing38minA Beautiful Question, Part 2
• Now Playing34minThe Non Local Universe
• Now Playing33minUnderstanding Our Unseen Reality
• Now Playing34minNon-Dual Reality
• Now Playing31minConsciousness Is The Way The Universe Turns Nothing Into Something
• Now Playing33minThe Super Human Mind
• Now Playing26minIs Mind/Body Medicine Becoming Mainstream?
• Now Playing29minIranian Woman - Space Hero
• Now Playing32minThe Mind Body Code
• Now Playing39minThe Garden Of Truth: The Vision And Promise Of Sufism, Islam's Mystical Tradition
• Now Playing27minHow We Create Our Reality
• Now Playing32minWhat Your Thoughts Cannot Tell You
• Now Playing35minCosmic Evolution: Current Understanding Of The Universe
• Now Playing35minGod That Could Be Real
• Now Playing33minSolution To The Hard Problem Of Consciousness

Deep Time History

• Now Playing51minThe Rise Of Civilization
• Now Playing51minThe Age Of Discovery
• Now Playing51minThe Industrial Revolution And Modern Warfare

Destination: Mars

• Now Playing17minPart 1: The Mission
• Now Playing19minPart 2: The Astronauts
• Now Playing17minPart 3: The Journey
• Now Playing12minPart 4: Surviving On Mars
• Now Playing15minPart 5: Why One Way?

Destination: Moon

• Now Playing15minChapter 1: A Matter Of Gravity
• Now Playing9minChapter 2: Water - The Big Question
• Now Playing14minChapter 3: From Outpost To Colony
• Now Playing11minChapter 4: Surviving....And Thriving?
• Now Playing11minChapter 5: Mars Direct Or Moon First?

Destination: Pluto

• Now Playing8minPart 1: Close Encounters Of The Plutonian Kind
• Now Playing7minPart 2: Pluto Or Bust
• Now Playing12minPart 3: Into The Kuiper Belt
• Now Playing9minPart 4: The Mapmaker's Dream
• Now Playing11minPart 5: Looking Back, Looking Forward
• Now Playing18minPart 7: Behind The Scenes With Alan Stern
• Now Playing10minPart 6: The Shoals Of Pluto
• Now Playing4minPart 9: The Pluto Flyby
• Now Playing5minPart 8: The "Giant Heart" On Pluto
• Now Playing4minPart 10: New Horizons Calls Home
• Now Playing8minPart 11: New Horizons - Pluto Flyby Images
• Now Playing8minPart 12: The Surface of Pluto
• Now Playing12minPart 13: The Right Stuff

Digits

• Now Playing53minConnecting To The Future
• Now Playing55minMan Vs. Machine
• Now Playing53minGuardians Of The Web

Doug To The Rescue

• Now Playing30minThe Dogs of Hurricane Dorian
• Now Playing29minLost Dogs of Louisiana
• Now Playing31min13 Days After Hurricane Laura
• Now Playing31minOregon Fire Cats
• Now Playing30minPuerto Rico Rescue Pups
• Now Playing31minChasing Ghost
• Now Playing24minIsland Dogs
• Now Playing26minUrban Hyenas
• Now Playing26minBats Of Malawi
• Now Playing25minDixie Fire Foxes
• Now Playing23minTornado Town

Dynamic Genomes

• Now Playing50minHidden Treasures In Our DNA
• Now Playing50minThe DNA Switch

Eat Like

• Now Playing21minCatherine the Great
• Now Playing19minA Wolf
• Now Playing21minA Viking

Eat Me (Or Try Not To)

• Now Playing50minThe Takeover
• Now Playing50minThe Taste
• Now Playing50minThe Marketing
• Now Playing50minThe Supply Chain
• Now Playing50minThe Impact
• Now Playing50minThe Future

Eclipse Across America

• Now Playing32minCoast To Coast: Part 1
• Now Playing33minCoast To Coast: Part 2
• Now Playing15minEclipse Planet
• Now Playing25minWitnessing The Eclipse

Ecuador: On The Wild Side

• Now Playing53minFrom The Amazon To The Andean Peaks
• Now Playing53minFrom The Andes To The Galapagos Islands

Engineering the Future

• Now Playing54minWind
• Now Playing59minAviation
• Now Playing57minFusion
• Now Playing57minTidal
• Now Playing52minMaritime
• Now Playing54minSolar
• Now Playing53minElectric Vehicles
• Now Playing52minThe Metaverse
• Now Playing52minHyperloop
• Now Playing52minThe Race To Space
• Now Playing52minPerpetual Power
• Now Playing53minTimber Skyscraper

Evolve

• Now Playing53minExplore
• Now Playing54minSurvive
• Now Playing53minCure
• Now Playing54minProtect
• Now Playing53minMove
• Now Playing53minRestore

FASTER!

• Now Playing50minThe Elevator
• Now Playing51minThe Highway
• Now Playing50minThe Shopping Mall
• Now Playing50minThe Plastic Container
• Now Playing50minThe Microwave
• Now Playing50minThe Disposable Cup
• Now Playing50minThe Bar Code
• Now Playing50minThe Dishwasher

Future Cities Asia

• Now Playing14minDesigning
• Now Playing13minConstructing
• Now Playing15minRegenerating
• Now Playing15minResilience

Gaming Show: In My Parents' Garage

• Now Playing23minURL Not Earl
• Now Playing23minCode Yellow
• Now Playing23minThe Gimmick
• Now Playing23minDIY
• Now Playing23minMy Uncle's Car
• Now Playing23minThe Troll
• Now Playing22minAll Night Long!
• Now Playing23minThe Intern
• Now Playing23minBack In Time
• Now Playing23minCry Wolf
• Now Playing23minThe Power Up 1000
• Now Playing23minWe Have A Llama
• Now Playing23minGlitch
• Now Playing22minCrowdfunding
• Now Playing23minCompany Man
• Now Playing22minExtreme
• Now Playing23min"Pong" The Movie!
• Now Playing23minGarage Sale
• Now Playing23minWagony Redux: Electric Boogaloo
• Now Playing23minShaqowe'en
• Now Playing23minDemar
• Now Playing23minHall Of Fame
• Now Playing22minTournie
• Now Playing23minRock & Roll
• Now Playing22minSponsorship

Giants

• Now Playing53minAnacondas
• Now Playing53minElephants
• Now Playing53minCrocodiles
• Now Playing53minSharks
• Now Playing53minLions

Growing Up

• Now Playing20minShark Hunter
• Now Playing20minSky Dive
• Now Playing20minDeer Hunter
• Now Playing20minGobi Desert
• Now Playing20minSky Climb
• Now Playing20minBull Jump
• Now Playing20minSalt Journey
• Now Playing20minLife Choice
• Now Playing20minWasp Fighters
• Now Playing20minReindeer Chase
• Now Playing20minBee Attack

Gym Stars, Part 1

• Now Playing22minGoing For Gold
• Now Playing22minBouncing Back
• Now Playing22minStarting Over
• Now Playing22minFear Of Falling
• Now Playing22minLife Changes
• Now Playing22minBreaking Free
• Now Playing22minA Star Is Born
• Now Playing22minThe Last Dance
• Now Playing22minTrying Out
• Now Playing22minHeart Of A Lion
• Now Playing22minSo Close
• Now Playing22minThe Next Level
• Now Playing22minWe Can Be Heroes
• Now Playing22minProving It
• Now Playing23minMaking The Grade
• Now Playing22minStepping Up
• Now Playing23minBest In Britain
• Now Playing22minFuture Champions
• Now Playing23minBelieve In Yourself
• Now Playing21minBring It On
• Now Playing23minA Test Of Friendship
• Now Playing23minDove's Last Chance
• Now Playing23minTouching A Cloud
• Now Playing23minEverything To Lose
• Now Playing23minFighting To The Finish

Gym Stars, Part 2

• Now Playing23minThings Don't Always Go To Plan
• Now Playing23minQuitting's Not An Option
• Now Playing23minNever Say Never
• Now Playing23minLeaving Your Comfort Zone
• Now Playing23minMaking It Happen
• Now Playing23minTrying Something New
• Now Playing22minTo Be The Best In The World
• Now Playing23minAnything Could Happen
• Now Playing22minThe Lockdown Showdown

HI$TORY With Peter Sagal

• Now Playing15minTranscontinental Railroad
• Now Playing17minCold War
• Now Playing16minCivil War
• Now Playing17minWatergate

History By The Numbers

• Now Playing47min4 Trillion French Fries
• Now Playing47minEverest
• Now Playing47minQueens For Life
• Now Playing47minCrime Bosses
• Now Playing47minCrazy Rich People
• Now Playing47minThe Roaring 20s
• Now Playing47minPsychedelics
• Now Playing47minHeists
• Now Playing47minKing Tut
• Now Playing47minRace To Berlin
• Now Playing47minThe Gender Gap
• Now Playing47minThe Amazon
• Now Playing47minInfidelity
• Now Playing47minParty Animals
• Now Playing47minSkyscrapers
• Now Playing47minAir Travel
• Now Playing47minAstronauts
• Now Playing47minCats & Dogs
• Now Playing47minGenghis Khan
• Now Playing47minThe Great Migration

History: The Interesting Bits

• Now Playing53minHow To Be President
• Now Playing53minHow To Get Away With It
• Now Playing53minHow To Keep A Secret
• Now Playing53minHow To Start A War
• Now Playing53minHow To Make A Fortune
• Now Playing53minHow To Fall In Love
• Now Playing53minHow To Start A Revolution
• Now Playing53minHow To Be Inventive

Illusions

• Now Playing11minReality?
• Now Playing13minBrightness And Contrast
• Now Playing11minMotion
• Now Playing10minThe Classics
• Now Playing10minGrouping

Impossible Escapes: Civil War

• Now Playing31minJohn Doy And The Immortal 10
• Now Playing33minBreaking Out Of Libby Prison
• Now Playing40minPauline Cushman: Tales Of A Yankee Spy
• Now Playing32minRebel Raid In Vermont
• Now Playing42minRobert Smalls: Steamboat To Freedom
• Now Playing37minInto The Rebel Swamp

Inside The Mind Of A Con Artist

• Now Playing53minMatthew Cox
• Now Playing52minChristophe Rocancourt
• Now Playing53minJan Lewan
• Now Playing53minFrédéric Bourdin
• Now Playing52minShaun Greenhalgh
• Now Playing52minHelmut Kiener

Junior Vets

• Now Playing28minFirst Day At Vet School
• Now Playing28minFirst-Hand Vet Experience
• Now Playing28minOvercoming Fears
• Now Playing28minA Mysterious Lump
• Now Playing28minAn Important Job
• Now Playing28minChallenges
• Now Playing28minNo Room For Phobias
• Now Playing28minDouble Emergency
• Now Playing27minProblem Solvers
• Now Playing28minAnd The Winner Is
• Now Playing29minNo Time To Waste
• Now Playing29minHeavy Surgery
• Now Playing28minHealth Check-Ups
• Now Playing28minAnother Busy Day
• Now Playing28minFacing Fears
• Now Playing28minLife-Changing Operation
• Now Playing28minCritical Examination
• Now Playing28minOn Duty
• Now Playing28minTough Challenges
• Now Playing28minTime To Say Goodbye
• Now Playing27minPick Me
• Now Playing26minRoger Has A Problem
• Now Playing27minA Singing Cat
• Now Playing26minSolving A Mystery
• Now Playing26minA Singing Dog

Lysander: The Workhorse

• Now Playing28minLysander: The Workhorse: Part One
• Now Playing27minLysander: The Workhorse: Part Two

My Wild Backyard

• Now Playing30minManyoni Reserve
• Now Playing11minSouthern California
• Now Playing14minJanos Biosphere Reserve
• Now Playing14minNew York City
• Now Playing9minPatagonia

Nature Through Her Eyes

• Now Playing20minCall Of The Wild
• Now Playing15minWho Tells The Story?
• Now Playing16minClimbing The Mountain
• Now Playing14minOne World

Nature's Hidden Miracles

• Now Playing53minThe Secret Life Of Plants
• Now Playing53minInsects As Super Adapters
• Now Playing53minMicroorganisms, The Invisible Ruler

Normandy, Land Of Warriors

• Now Playing51minRollo The Viking: The Conquest
• Now Playing50minWilliam The Conqueror: The Rise
• Now Playing51minRichard The Lionheart: The Fall

NYC Revealed

• Now Playing25minRats
• Now Playing27minTaxis
• Now Playing25minTrash
• Now Playing25minSewage
• Now Playing25minSteam
• Now Playing25minBridges
• Now Playing25minParks
• Now Playing25minAirports
• Now Playing25minElectricity
• Now Playing24minWater
• Now Playing25minWorld Trade Center
• Now Playing25minPigeons
• Now Playing25minEmpire State Building
• Now Playing24minPorts
• Now Playing25minSkyscrapers
• Now Playing25minFood
• Now Playing25minFDNY
• Now Playing25minGrand Central Terminal
• Now Playing25minRoads
• Now Playing25minRecycling

Oddly Satisfying Science

• Now Playing25minScience on Fire
• Now Playing25minInvisible Impacts
• Now Playing25minWater, Water Everywhere
• Now Playing25minMagnificent Mixtures
• Now Playing25minUp and Atom
• Now Playing25minHot Hot Heat
• Now Playing25minExplosive Elements
• Now Playing26minColorful Conundrums
• Now Playing25minDon't Believe Your Eyes
• Now Playing24minThe Sound of Science

Of Knights And Arrows

• Now Playing26minOf Knights And Arrows: Part One
• Now Playing32minOf Knights And Arrows: Part Two

Oops, I Changed the World

• Now Playing52minConditioned
• Now Playing53minBlue Genes
• Now Playing52minThe Beat Goes On
• Now Playing53minFlash Of Success
• Now Playing53minSweet Success
• Now Playing53minAcid Test
• Now Playing52minHair Raising Science
• Now Playing52minDiscovering Drink
• Now Playing52minBigger Bang
• Now Playing52minLaxative Lunacy
• Now Playing53minGet A Grip
• Now Playing53minHow Saran Wrap Saved D-Day
• Now Playing53minSleeping On the Job
• Now Playing53minTeas & Tipple
• Now Playing53minLenin to Lady Gaga

Operation Ouch, Part 1

• Now Playing29minWhat Makes You, You?
• Now Playing28minWhy Do Bones Break?
• Now Playing29minWhat Makes You Go Yuck?
• Now Playing28minDon't Pick Your Scabs!
• Now Playing29minWhy Your Poo Is Brown?
• Now Playing28minHow To Grow A Brain
• Now Playing28minWhat Thumbs Are For
• Now Playing28minHow Your Reflexes Can Save You
• Now Playing29minWhy Is Sweat Salty
• Now Playing29minGet Your Body Moving!
• Now Playing28minWhy Are Some People Faster Than Others?
• Now Playing28minIs My Body Electric?
• Now Playing29minThe Body Roadtrip! (Best Of)
• Now Playing29minThe Ouch! Awards (Special)
• Now Playing31minThe Life Fix (Special)
• Now Playing28minWe're Having A Baby
• Now Playing28minDoctors Face Off!
• Now Playing28minThere's A Lizard In The Lab!
• Now Playing28minLoud, Loud, Louder!
• Now Playing28minWhat Are Vaccinations For?
• Now Playing28minSlime, Snot And Bogies!
• Now Playing29minFlexible Arms And Triple Jumping!
• Now Playing29minKnobbly Knees And What They Are For
• Now Playing28minYour Brilliant Brain And Sparky Signals
• Now Playing29minAll Hail King Xand!

Operation Ouch, Part 2

• Now Playing29minMighty Muscles!
• Now Playing29minBlood Super-Highway
• Now Playing29minBattle Of The Blood Cells
• Now Playing30minThe Ouch! Awards 4
• Now Playing28minIt's Hairy!
• Now Playing29minHow Can You See In The Dark?
• Now Playing28minMagnificent Mucus
• Now Playing29minMind You Don't Fall!
• Now Playing28minTendon Take Off!
• Now Playing29minMouth V Knee
• Now Playing29minYou're Mostly Made Of Water!
• Now Playing29minExplosive Energy!
• Now Playing29minFingers On Buzzers!
• Now Playing29minIt's A Lung Slide!
• Now Playing29minEarmageddon!
• Now Playing29minHeroic Hippocampus
• Now Playing29minTotally Gross!
• Now Playing29minOperation Ouch! Does Space
• Now Playing29minLet's Talk About Cancer

Operation Ouch: Ouchtastic

• Now Playing29minOuchtastic! Skeleton
• Now Playing29minOuchtastic! Digestion
• Now Playing29minOuchtastic! Ears
• Now Playing29minOuchtastic! Eyes
• Now Playing29minOuchtastic! Teeth

Planet Insect

• Now Playing55minPart One: Small Creatures, Big Lives
• Now Playing55minPart Two: The Next Generation
• Now Playing57minPart Three: Hive Minds

Prescription: Nutrition

• Now Playing18minEpisode 1: Green Revolution
• Now Playing18minEpisode 2: Grain Of Truth
• Now Playing18minEpisode 3: Nature's Candy
• Now Playing16minEpisode 4: Spilling The Beans

Proof Of Concept

• Now Playing51minConceiving Consciousness
• Now Playing50minRandomness & Probability
• Now Playing50minTruth & Logical Paradox
• Now Playing50minThe Infinite

Race With A Lady

• Now Playing30minRace With A Lady: Part I
• Now Playing30minRace With A Lady: Part II

Rebuilding Ancient Rome

• Now Playing5minAra Pacis
• Now Playing4minBaths Of Caracalla
• Now Playing4minCircus Maximus
• Now Playing4minColosseum
• Now Playing3minCuria Julia
• Now Playing6minDomus Aurea Outside
• Now Playing3minForum Of Augustus
• Now Playing5minForum Of Peace
• Now Playing4minHarbor Of Trajan
• Now Playing5minOstia Antica
• Now Playing5minPantheon
• Now Playing4minStadium Of Domitian
• Now Playing4minTemple Of Jupiter
• Now Playing6minRoman Forum
• Now Playing6minTheater Of Pompey

Rescued Chimpanzees Of The Congo With Jane Goodall

• Now Playing53minBuilding The Dream
• Now Playing53minNew Arrivals
• Now Playing53minMaking Friends
• Now Playing53minThe Big Move
• Now Playing53minHope
• Now Playing51minPath to Freedom
• Now Playing50minHeroes
• Now Playing50minExpect the Unexpected
• Now Playing50minIsland Life
• Now Playing50minAll Animals Welcome
• Now Playing51minReady to Go

Royals: Keeping The Crown

• Now Playing50minThe Cousins' War
• Now Playing50minNazi Royals
• Now Playing50minPost-War Amnesia
• Now Playing50minBreaking Tradition
• Now Playing50minRebel Princess
• Now Playing50minThe Pursuit of Normal

Running The Wild

• Now Playing25minCopenhagen
• Now Playing25minLondon
• Now Playing25minParis
• Now Playing25minCroatia
• Now Playing25minSantorini
• Now Playing25minBest Of Ep. 1 To 5
• Now Playing25minLisbon
• Now Playing25minDelhi
• Now Playing25minMexico City
• Now Playing25minGran Canaria
• Now Playing25minJamaica
• Now Playing25minBest Of Ep. 7 To 11

Scanning The Nile

• Now Playing53minLost Cities Of The Delta
• Now Playing53minLost Routes To The Pyramids
• Now Playing51minTraces Of The Pharaohs Of Luxor
• Now Playing53minMaterials Convoys: A Pharaonic Task

Schnellbomber

• Now Playing26minSchnellbomber: Part One
• Now Playing22minSchnellbomber: Part Two

Science In Archaeology 3.0

• Now Playing51minMaking Objects Speak
• Now Playing53minMaking The Dead Speak
• Now Playing51minMaking Sites Speak
• Now Playing52minMaking The Invisible Speak

Sea Hunters

• Now Playing20minHumpback Gang
• Now Playing20minOrcas vs. Humpback
• Now Playing20minSea Lions vs. Orcas
• Now Playing20minDolphins and Gannets
• Now Playing20minSeals vs. Hyennas
• Now Playing20minWhales vs. Gulls

Secret Lifes of Sharks

• Now Playing14minGreat White Shark
• Now Playing12minHammerhead Shark
• Now Playing15minTiger Shark

Silly Sustainability

• Now Playing18minCan You Power A Lawnmower With Grass?
• Now Playing19minK-Cups/Recycled Plastic into Shoes
• Now Playing15minCardboard Lumber Part 1
• Now Playing20minCardboard Lumber Part 2

Siyaya: Wildest Cape

• Now Playing25minCederberg - The Secret Library
• Now Playing25minDe Hoop - Place Of Hope
• Now Playing25minGoukamma - A Last Wild
• Now Playing25minWest Coast - Heading For Bird Island
• Now Playing25minLambert's Bay Bird Island - Where The Birds Are In Charge
• Now Playing25minThe Hottentots Holland Mountains - Crossing The Mountains
• Now Playing25minHottentots Holland Nature Reserve - On Angel's Wings
• Now Playing25minThe Hottentots Holland Mountains - Unfinished Business
• Now Playing25minKogelberg - Source To Sea
• Now Playing25minRobberg - Learning About Survival
• Now Playing25minRobberg - The Exploration Continues
• Now Playing25minAnysberg - Hidden Gem Of The Klein Karoo
• Now Playing25minGamkaberg - Mountain Fortress

Space Greed

• Now Playing11minDeclaring Martian Law
• Now Playing12minSol Ownership: Can a Corporation Own The Sun?
• Now Playing11minTerraforming: Can We Build a Planet B?
• Now Playing12minCarbon Costs: Is Space Exploration Even Worth It?
• Now Playing12minLooting the Moon For Trillions of Dollars
• Now Playing12minAsteroid Mining: Is The Next Gold Rush in Space?
• Now Playing11minEndangered Aliens: Will Humans Trash Space?
• Now Playing12minSpace Cowboys: Who Will Wrangle Asteroids and Save The Earth?
• Now Playing13minArming Space Force
• Now Playing11minAbove the Law
• Now Playing12minToxic Space Factories
• Now Playing12minSuing Our Way to Space
• Now Playing15minWill Satellites Help Us Save or Exploit Earth?
• Now Playing12minSpace Pirates
• Now Playing11minMad Scientists in Outer Space
• Now Playing12minSpace as a Tax Haven
• Now Playing15minGoing So Fast Time Slows Down
• Now Playing14minSpace & Shelter
• Now Playing13minWorld Wide Wifi
• Now Playing14minStrange Space Recipes

Space Phenomena

• Now Playing49minAlien Planets
• Now Playing48minBlack Holes

Space Probes!

• Now Playing53minInner Planets
• Now Playing53minOuter Planets
• Now Playing30minVoyager: The Grand Tour
• Now Playing26minCassini and The Crown Jewel
• Now Playing27minRed Rovers
• Now Playing23minPluto's Heart
• Now Playing20minOur Inner Circles of Hell
• Now Playing24minFuture Missions

Speed

• Now Playing50minAcross Oceans
• Now Playing53minAcross Continents
• Now Playing54minInto the Skies
• Now Playing54minInto Space

Stephen Hawking's Favorite Places

• Now Playing27minPart 1
• Now Playing28minPart 2
• Now Playing28minPart 3

Suppressed Science

• Now Playing26minMerging Man & Machine
• Now Playing26minThe Suppressed Science Of Psychedelics
• Now Playing25minRace: Science, Social Construct, or Both?
• Now Playing24minWeather Control: The Debate Over Geo-Engineering
• Now Playing23minWeather Control: The Debate Over Geo-Engineering
• Now Playing22minGenetic Editing
• Now Playing22minAlternative Energy Sources
• Now Playing22minTheories Of Everything

Tech Toys, Part 1

• Now Playing26minTechploration
• Now Playing26minFuture Now
• Now Playing23minTransport And Design
• Now Playing23minInnovation Lift Off
• Now Playing23minDesign Inspired
• Now Playing23minMultilevel Mobility
• Now Playing23minTransport Tech
• Now Playing23minEdge Of Elevation
• Now Playing23minShutter Speed
• Now Playing23minMachines In Motion
• Now Playing23minSpeed Of Sound
• Now Playing23min4 Wheels Of Wonder
• Now Playing23minReady, Set, Go
• Now Playing23minFace Of Innovation
• Now Playing23minSky's The Limit
• Now Playing23minIconic Innovation
• Now Playing23minDriving Into The Future
• Now Playing23minElectric Revolution
• Now Playing23minTransport Through Time
• Now Playing23minElectrified
• Now Playing23minShift In Transport
• Now Playing23minSpeed + Efficiently
• Now Playing23minForm Meets Function
• Now Playing23minTomorrow's Transport
• Now Playing23minThe Innovation Game

Tech Toys, Part 2

• Now Playing23minDevelop. Design. Print.
• Now Playing23minFour Eyes, Four Wheels
• Now Playing23minTechnology Refueled
• Now Playing23minUrban Electric
• Now Playing23minSpeed + Sound
• Now Playing23minTransport Inspired
• Now Playing23minTaking Flight
• Now Playing23minJet Power
• Now Playing23minTilt And Kick
• Now Playing23minFly And Hover
• Now Playing23minTransport + Games
• Now Playing23minTransformation
• Now Playing23minElectrified
• Now Playing23minLand + Sea
• Now Playing23minFlying High
• Now Playing22minRoaming In Technology
• Now Playing22minTwo, Three, Four Wheels
• Now Playing22minSuper Car, Super Bike
• Now Playing22minLand, Sea, And Power
• Now Playing22minThe Future Of Transport
• Now Playing22minSpeed Meets Design
• Now Playing22minDrifting In Style
• Now Playing22minOff Road Power
• Now Playing22minThe Flying Car
• Now Playing22minThe Anatomy Of A Supercar

Terror!

• Now Playing44minThe Hotel: Jerusalem, 1946
• Now Playing45minThe Bar: Algiers, 1956
• Now Playing44minThe Games: Munich 1972
• Now Playing45minThe Station: Bologna, 1980
• Now Playing45minThe Ship: USS Cole, 2000
• Now Playing45minThe Island: Norway, 2011

The Convair Jetliners

• Now Playing25minThe Convair Jetliners: Part One
• Now Playing23minThe Convair Jetliners: Part Two

The Dengineers

• Now Playing29minSurvival Den
• Now Playing29minMusic Den
• Now Playing29minFootball Den
• Now Playing29minHawaii Den
• Now Playing29minDance Den
• Now Playing29minKitchen Den
• Now Playing29minArt Den
• Now Playing29minTrain Den
• Now Playing29minSpy Den
• Now Playing29minCommunity/School Den
• Now Playing29minHighlights
• Now Playing29minMagical Library Den
• Now Playing29minDJ Den
• Now Playing29minAdventure Den
• Now Playing29minEco Den
• Now Playing29minJournalism Den
• Now Playing29minPlane Den
• Now Playing29minCommunity Den
• Now Playing29minGingerbread House Den
• Now Playing29minBollywood Den
• Now Playing29minHollywood Cinema Den
• Now Playing29minHighlights
• Now Playing29minRevisits - Part I
• Now Playing29minRevisits - Part II
• Now Playing29minObservatory Den

The History Of Food

• Now Playing30minThe Invention of Cooking
• Now Playing34minThe Agricultural Revolution
• Now Playing34minFermentation, Preservation and Exploration
• Now Playing28minThe Industry of Food
• Now Playing32minThe Future of Food

The History of Home Narrated by Nick Offerman

• Now Playing1hr 3minThe Foundations of Home - Structure and Shelter
• Now Playing54minThe Hall, the Kitchen, the Dining Room, the Living Room
• Now Playing1hr 4minThe Second Story - Private Life

The History Of Home Presents

• Now Playing24minThe Rich & The Royal
• Now Playing25minHearst Castle
• Now Playing24minHampton Court Palace
• Now Playing24minMonticello

The Humboldt Current

• Now Playing52minGenesis
• Now Playing52minRenewal
• Now Playing52minArrival

The Lightbulb Moment

• Now Playing22minLike Button: The Unintended Consequences Of The Facebook Like Button
• Now Playing25minCubicle: How The Cubicle Became Universally Hated
• Now Playing23minBarcode: How The Barcode Shaped Our Modern Economy
• Now Playing25minFlorida: How Real Estate Rogues Invented Florida As We Know It
• Now Playing23minMauve: The Fake Color That Made Our Modern World
• Now Playing24minVanilla: The Bean That Shaped The Future Of Food
• Now Playing24minWi-Fi: The Hollywood Actress Who Laid The Groundwork For Wi-Fi
• Now Playing24minStreaming: The Invention That Revolutionized Streaming Video
• Now Playing23minInterstate: How The Interstate Connected And Divided America
• Now Playing28minEdison: How Edison Reinvented Invention

The Log Book Series

• Now Playing39minSteve Pisanos: The Flying Greek
• Now Playing38minKen Wallis: A Man And His Autogyro
• Now Playing28minGeorge Stanley McGovern

The Pet Rescuers

• Now Playing22minA Second Chance
• Now Playing24minOne Step At A Time
• Now Playing24minEveryday Challenges
• Now Playing24minRescue And Recovery
• Now Playing23minMilestones
• Now Playing23minThe Mono-Eyed Cat
• Now Playing23minBella And Homer
• Now Playing24minHeidi's New Home
• Now Playing25minIt's A Match
• Now Playing23minNot An Ordinary Day
• Now Playing23minGoing Ga-Ga
• Now Playing25minNew Tricks
• Now Playing22minVet Visits
• Now Playing23minDoggy Etiquette
• Now Playing25minHe Needs A Job
• Now Playing24minNew Beginnings
• Now Playing24minBusy Day
• Now Playing23minStrange Habits
• Now Playing22minA Major Challenge
• Now Playing25minUnder Pressure
• Now Playing24minNo Time To Waste
• Now Playing25minA Bright Future
• Now Playing24minOvercoming Trauma
• Now Playing24minA Bittersweet Day
• Now Playing22minMagnificent Beast

The Secret Lives Of Big Cats

• Now Playing36minThe Secret Lives Of Tigers
• Now Playing27minThe Secret Lives Of Snow Leopards
• Now Playing30minThe Secret Lives Of Pumas
• Now Playing33minThe Secret Lives Of Lions
• Now Playing37minThe Secret Lives Of Leopards
• Now Playing33minThe Secret Lives Of Jaguars
• Now Playing29minThe Secret Lives Of Cheetahs

The Secrets To Civilization

• Now Playing52minBronze Age Catastrophe
• Now Playing52minCities And Empires
• Now Playing53minEmpire And Epidemics

The Tracker's Diary: Bears Of Katmai

• Now Playing28minThe Last Frontier
• Now Playing22minFish Like a Bear
• Now Playing24minA Working Ecosystem
• Now Playing25minThe Wolf and The Storm
• Now Playing25minNeighbors, Old and New
• Now Playing22minNo Place Like Home

The Vikings

• Now Playing46minOrigin of the Vikings
• Now Playing45minEarly Viking Society and Religion
• Now Playing45minThe Ships of the Vikings
• Now Playing45minWeapons of the Vikings

The World Of Bridges

• Now Playing27minChina
• Now Playing27minWales
• Now Playing27minIndia
• Now Playing27minZimbabwe

The Year That Rocked The World

• Now Playing53min1977
• Now Playing53min1981
• Now Playing53min1989
• Now Playing53min1997
• Now Playing53min2004

Tycoons

• Now Playing53minUSA
• Now Playing53minRussia
• Now Playing53minChina

Ultimate Goal

• Now Playing46minKick Off
• Now Playing48minTake The Chance
• Now Playing47minCutback
• Now Playing47minFinal Squad
• Now Playing47minTeamship
• Now Playing49minMatch Day
• Now Playing46minGrassroots
• Now Playing47minNo Excuses
• Now Playing49minSelection Day
• Now Playing49minChange Of Pace
• Now Playing48minFinal Preparations
• Now Playing49minThe Game

Underwater Wonders Of The National Parks

• Now Playing16minDevils Hole
• Now Playing14minMontezuma Well
• Now Playing24minUSS Arizona: Part 1
• Now Playing19minUSS Arizona: Part 2
• Now Playing13minBuck Island
• Now Playing13minLake Mead
• Now Playing12minYellowstone

Underworld

• Now Playing53minGreat Britain
• Now Playing53minGibraltar
• Now Playing53minSlovenia
• Now Playing53minBelize
• Now Playing53minChina

What Went Wrong?

• Now Playing47minThe Grenfell Tower Fire
• Now Playing49minThe Challenger Shuttle Disaster
• Now Playing47minThe Concorde Air Crash
• Now Playing46minThe Disappearance Of Malaysia Airlines MH370

Wow That's Amazing

• Now Playing23minContagious Yawns
• Now Playing23minStatic Electricity
• Now Playing23minPendulums
• Now Playing23minThe Forces Of Inertia
• Now Playing23minIllusion
• Now Playing23minKinetic Energy
• Now Playing23minBuoyancy Force
• Now Playing23minTelescopes
• Now Playing23minDetecting Lies
• Now Playing23minA Vanishing Trick
• Now Playing23minSpace Suits
• Now Playing23minMovie Effects
• Now Playing23minThe Centre Of Gravity
• Now Playing23minSimultaneous Contrast
• Now Playing23minMagic Tricks
• Now Playing23minAir Pressure
• Now Playing23minFun Photography Ideas
• Now Playing23minA Hologram Projector
• Now Playing23minAfterimages
• Now Playing23minSensory Deprivation
• Now Playing23minAn Optical Illusion
• Now Playing23minA Card Trick
• Now Playing23minTransferring Sound
• Now Playing23minChemical Reactions
• Now Playing23minFacial Symmetry

Specials, Part 1

• Now Playing24min2023: A Space Odyssey
• Now Playing25minAI Tipping Point
• Now Playing20minAmerica's World War I Centennial
• Now Playing25minArea Bombing
• Now Playing1hr 16minAsteroids: The Source Of Life?
• Now Playing34minAttack Of The Zombie Fungus
• Now Playing1hr 33minBessie Coleman: Queen Of The Skies
• Now Playing30minBirth Of The Solar System
• Now Playing34minBuff In Vietnam
• Now Playing27minCanards Of War
• Now Playing26minCmdr. J. R. "Hotdog" Brown on the Air War in Vietnam
• Now Playing30minConscious Capitalism
• Now Playing19minCooking The Ultimate Steak
• Now Playing38minCornfield Shipwreck
• Now Playing36minDebugged
• Now Playing52minDestination: Pluto Beyond The Flyby
• Now Playing35minDr. Sanator: Legacy
• Now Playing22minDreaming In Overdrive: The John Staluppi Story
• Now Playing24minEarly British Jets
• Now Playing45minEclipse: Science And Awe
• Now Playing34minEngines of Change
• Now Playing23minEpic Collections: The Ed Ewing Collection
• Now Playing10minEvolution Of Exercise
• Now Playing42minFighting For Lincoln: The Wide Awakes
• Now Playing1hr 30minGoing Circular

Specials, Part 2

• Now Playing31minLt. Gen. Spence Armstrong On The Air War In Vietnam
• Now Playing18minMars: The Journey
• Now Playing46minMathemagics
• Now Playing51minMeet The Mustelids
• Now Playing46minMercedes-Benz: 125 Years
• Now Playing28minMIA: Hunt For A WWII Plane
• Now Playing21minMighty Mouse
• Now Playing51minMiniverse
• Now Playing25minNever Home Alone: The Wildlife Of Kitchens, Bathrooms, And Beyond
• Now Playing24minOperation Lusty: Hunt For The First Nazi Jet
• Now Playing19minOur Violent Sun
• Now Playing53minPeru: Sacrifices In The Kingdom Of Chimor
• Now Playing52minPompeii: Buried Secrets Of The Villa Giuliana
• Now Playing53minPrehistoric Worlds
• Now Playing1hr 4minPumped Dry: The Global Crisis of Vanishing Groundwater
• Now Playing44minPutin And The Oligarchs
• Now Playing53minPyramids Builders: New Clues
• Now Playing33minRace For The Superfortress
• Now Playing35minRainbow 5
• Now Playing21minRapidly Evolving Human With Spencer Wells
• Now Playing1hr 32minRed Elvis: The Cold War Cowboy
• Now Playing53minRescued Chimpanzees Of The Congo With Jane Goodall Special
• Now Playing51minReturn To The Moon
• Now Playing33minRunway Of Thunder: The Story Of Project Zelmal
• Now Playing53minSagrada Familia: The Gaudi Revolution

Specials, Part 3

• Now Playing29minThe Comet Bomber
• Now Playing27minThe Everlasting Hawker Hunter
• Now Playing24minThe Hunt For Dark Matter
• Now Playing25minThe Hunt For The Slave Ship Guerrero
• Now Playing27minThe Hütter Brothers
• Now Playing53minThe Last Persian Shah
• Now Playing56minThe Lucy Mission: Origins Of The Solar System
• Now Playing52minThe Mystery Of The Cosquer Cave
• Now Playing53minThe Mystery Of The Giant Birds
• Now Playing52minThe Origami Code: Scientists Uncover The Power Of Folding
• Now Playing16minThe Rise & Fall Of T-Rex
• Now Playing28minThe Rise Of Lincoln
• Now Playing50minThe True Story of Pirates
• Now Playing53minThe Untold Story Of The Vatican
• Now Playing56minTop Science Stories Of 2016
• Now Playing53minTop Science Stories Of 2017
• Now Playing1hr 20minTop Science Stories of 2018
• Now Playing1hr 8minTop Science Stories of 2019
• Now Playing1hr 4minTop Science Stories of 2020
• Now Playing1hr 8minTop Science Stories of 2021
• Now Playing1hr 3minTop Science Stories Of 2022
• Now Playing1hr 2minTop Science Stories Of 2023
• Now Playing23minUSA TODAY Investigates: Roadside Memorials and Why People Make Them
• Now Playing33minVice Admiral Jerry Miller on the Korean Conflict
• Now Playing26minVice Admiral Robert F. Dunn: Naval Aviator