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How Do Animals Do That?A look at how dogs detect underwater targets, what makes ostriches nature's best marathon runners, how sloths spend so much time upside down without passing out, and can a pelican bill really hold more than his belly can.

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How Do Animals Do That?A look at how dogs detect underwater targets, what makes ostriches nature's best marathon runners, how sloths spend so much time upside down without passing out, and can a pelican bill really hold more than his belly can.0Heavy Metal Task ForceThe longest road-going vehicle brings electricity to an isolated region; tunneling behemoth digs a new subway system; sleek vessel fights the war on narcotics.

Extreme Engineering

• Now Playing45minTurning Torso
• Now Playing45minVenice Flood Gates
• Now Playing44minContainer Ships
• Now Playing45minOakland Bay Bridge
• Now Playing45minIceland Tunnels
• Now Playing44minOff-Shore Oil Platforms
• Now Playing44minCooper River Bridge
• Now Playing44minMilau Viaduct
• Now Playing44minExcavators

How Do Animals Do That?

• Now Playing21minLizards and Jellyfish
• Now Playing21minOwls and Octopuses
• Now Playing21minBirds and Sea Creatures
• Now Playing21minDog Tails and Crocodile Jaws
• Now Playing21minPsychic Cats and Fuzzy Otters
• Now Playing21minElephants and Ancient Animals
• Now Playing21minDolphins and Hyenas
• Now Playing21minSpace Bugs, Squirrel Mind Maps
• Now Playing21minAcrobatic Cat, Butterfly Wings
• Now Playing21minCuddly Rhinos, Bizarre Noses
• Now Playing21minTime-Telling Dog, Kangaroo Hop
• Now Playing21minSheep-Wrangling Dogs
• Now Playing21minCheeky Hamsters, Camel Humps
• Now Playing21minDog Doctors, Animal Architects
• Now Playing21minFoxy Foxes and Sticky Spiders
• Now Playing21minCool Koalas and Elephant Calls
• Now Playing21minBurly Seahorses, Early Birds
• Now Playing21minBarking Dogs and Sloth Buffets
• Now Playing21minCheesy Mice, Gassy Manatees
• Now Playing21minFlying Whales, Hippo Sunscreen
• Now Playing21minSmart Pups and Fish Baths
• Now Playing21minHeadbanging Birds
• Now Playing21minWhale Songs and Cool Canines
• Now Playing21minSuper Sloths, Ostrich Marathon

How Do They Do It? Seasons 4 & 6

• Now Playing22minBlack Boxes and More
• Now Playing22minFamily Car, Titanium, Letter
• Now Playing22minForest Fires and More
• Now Playing22minLand Mines, Air Boats and More
• Now Playing22minNuclear Submarine and More
• Now Playing22minBlue Angels, Ski Dome and More
• Now Playing22minFrom Waste to Power and More
• Now Playing22minCowboy Hats and More
• Now Playing22minDe-icing and More
• Now Playing22minMega Hotels, Lasers and More
• Now Playing22minG-Suits, Smart Grid and More
• Now Playing22minDrilling Solid Rock and More
• Now Playing22minJumbo Jets and More
• Now Playing22minArtificial Reefs and More
• Now Playing22minAssembly Line Robots and More
• Now Playing22minPropellers and More
• Now Playing23minBlast Through Rock and More
• Now Playing22min600 Degree Heat and More
• Now Playing22minAirplane Parachutes and More
• Now Playing22minWorld's Largest Aquarium
• Now Playing22minStainless Steel and More
• Now Playing22minBatteries and More
• Now Playing22minMilitary Helicopters and More

How Do They Do It? Seasons 8-9

• Now Playing22minFugu and More
• Now Playing22minBowling Balls and More
• Now Playing22minIce Rink, Car Plant
• Now Playing22minTaiko Drums and More
• Now Playing22minIsland Prison and More
• Now Playing22minSwiss Cheese and More
• Now Playing22minPretzels, Gondolas, Pearls
• Now Playing22minBrewery and More
• Now Playing22minRoulette Tables and More
• Now Playing22minBomb Squad and More
• Now Playing22minDuck Calls, Wasabi, Accordions
• Now Playing22minToto Washlets and More
• Now Playing22minSubmarine Rescue, Subaru
• Now Playing22min24 Hours of Daytona, Rum
• Now Playing21minCaviar and More
• Now Playing22minFrankfurters and More
• Now Playing22minPowerboats and More
• Now Playing22minCruise Ship, Truffles, Asphalt
• Now Playing22minCircus, Guitars
• Now Playing22minTsukiji, Cricket Bats, Parcels
• Now Playing22minLeatherman and More
• Now Playing22minHats and More
• Now Playing22minGuacamole and More
• Now Playing22minTennessee Whiskey and More
• Now Playing22minWorld in Miniature and More

How Do They Do It? Seasons 10-11

• Now Playing22minOpal, Stunt Planes, Nougat
• Now Playing22minToilet Paper and More
• Now Playing22minLocomotives and More
• Now Playing22minSardines and More
• Now Playing22minSalad, Rope, Insulin
• Now Playing22minPlane Painting, Clogs, Pasties
• Now Playing22minParis Sewers, Beretta, Cotton
• Now Playing22minBells and More
• Now Playing22minRussian Dolls and More
• Now Playing22minBall Bearings and More
• Now Playing22minSaffron, Ice Roads, Shelby
• Now Playing22minTitan Tires and More
• Now Playing22minLion Dance and More
• Now Playing22minChinamax and More
• Now Playing22minWrecker Trucks and More
• Now Playing22minPistachios and More
• Now Playing22minMarble, Mahjong, Escape Slides
• Now Playing22minKamaz Trucks and More
• Now Playing22minCivet Coffee and More
• Now Playing22minLeather, Grand Canal, Flyboard
• Now Playing22minParmesan and More
• Now Playing22minCarpets, Skis, Niagara Power
• Now Playing22minNori and More
• Now Playing22minBrass, Ice Patrol, Penjing
• Now Playing22minRacing Bikes and More

How Do They Do It? Seasons 12-13

• Now Playing22minHeavy-lift Plane and More
• Now Playing22minLogging, Tiles and Jaffa Cakes
• Now Playing22minMonorail and More
• Now Playing22minWine and More
• Now Playing22minScrews and More
• Now Playing22minRoad Rollers and More
• Now Playing22minTinned Grapefruit and More
• Now Playing22minHarp Strings and More
• Now Playing22minAga Cookers and More
• Now Playing22minRobo-farm and More
• Now Playing22minBamboo Scaffolding and More
• Now Playing22minEspadrilles and More
• Now Playing22minMacadamia Nuts and More
• Now Playing22minCooking Pans and More
• Now Playing22minSitar, Biltong and Bulldozers
• Now Playing22minFedoras and More
• Now Playing22minMohair, Quadskis and The Harp
• Now Playing22minRedbrush Tea and More
• Now Playing22minCredit Cards and More
• Now Playing22minPower Tunnel and More
• Now Playing21minTweed, Turntables and Hakarl
• Now Playing21minHats, Folding Bicycle and Skyr
• Now Playing21minAirport and Sun-dried Tomatoes
• Now Playing21minLobster Fishing and Sofas
• Now Playing21minBeds, Space Freighters

How It's Made, Part 1

• Now Playing22minThe Very First Episode
• Now Playing22minCompact Discs and Pantyhose
• Now Playing22minToothpicks and Beer
• Now Playing22minHearing Aids and Toilets
• Now Playing22minPaper, Jeans and Computers
• Now Playing22minNails and Safety Glasses
• Now Playing22minKayaks and Breakfast Cereals
• Now Playing22minTrucks and Circuit Boards
• Now Playing22minSteel and Apple Juice
• Now Playing22minHolograms and Canned Corn
• Now Playing22minPlastic Bags and Hockey Sticks
• Now Playing22minAluminum Screw Caps and Pasta
• Now Playing22minBicycle Helmets and Aluminum
• Now Playing22minEyeglass Lenses and Granite
• Now Playing22minHoney, Bricks and Pipe Organs
• Now Playing22minPersonal Watercrafts and Wine
• Now Playing22minWinter Jackets and Gold Rings
• Now Playing22minHydroponic Lettuce
• Now Playing22minWood Doors and Paintballs
• Now Playing22minCarpet and Drinking Water
• Now Playing22minFiberglass Boats and Fireworks
• Now Playing22minSteel Safes and Airplanes
• Now Playing22minGummy Candy and Aluminum Cans
• Now Playing22minAluminum Pots and Pans
• Now Playing22minCoins, Cars and Grocery Carts

How It's Made, Part 2

• Now Playing22minDecorative Moldings
• Now Playing22minPutty Knives and Garage Doors
• Now Playing22minPaving Asphalt
• Now Playing22minWood Burning Stoves
• Now Playing22minRobotic Arms and Tattoos
• Now Playing22minHockey Gloves and Snack Cakes
• Now Playing22minAmbulances and Acrylic Awards
• Now Playing22minAlkaline Batteries
• Now Playing22minGolf Balls and Parking Meters
• Now Playing22minSuits of Armor
• Now Playing22minSulkies and Bagpipes
• Now Playing22minGoalie Pads and Lapel Pins
• Now Playing22minCement and Caskets
• Now Playing22minKitchen Knives and Socks
• Now Playing22minElectrical Panels and Kites
• Now Playing22minThree-Wheeled Vehicles
• Now Playing22minSprings, Pavers and Pianos
• Now Playing22minRopes and Cymbals
• Now Playing22minSeat Belts and Windows
• Now Playing22minAir Filters and Suits
• Now Playing22minEscalator Handrails and Wigs
• Now Playing22minTraditional Bows and Hammocks
• Now Playing22minChains and Vinyl Records
• Now Playing22minWindshields and Post Clocks
• Now Playing22minInsulation and Exhaust Systems

How It's Made, Part 3

• Now Playing22minHandcuffs, Caulking Compound
• Now Playing22minFur Coat and a Golf Tee
• Now Playing22minFishing Reels, Kitchen Mixers
• Now Playing22minManhole Covers and Snowmobiles
• Now Playing22minSolid Tires and Globes
• Now Playing22minBoomerangs and Strobe Lights
• Now Playing22minWooden Bowls and Chainsaws
• Now Playing22minSteel Wool and Slot Machines
• Now Playing22minAirline Meals and Paper Cups
• Now Playing22minPadlocks and Hair Clippers
• Now Playing22minRacing Shells and Leather
• Now Playing22minSwords and Fuses
• Now Playing22minBumpers and Lighting Gels
• Now Playing22minUmbrellas and Tape Measures
• Now Playing22minScalpels and Ice Axes
• Now Playing22minBacon and Luxury Cars
• Now Playing22minTransmissions and Darts
• Now Playing22minMagnets and Crash Test Dummies
• Now Playing22minCurling Stones, Refrigerators
• Now Playing22minLevels and Sandpaper
• Now Playing22minIce Cream Treats
• Now Playing22minCricket Bats
• Now Playing22minWooden Barrels
• Now Playing22minStainless Steel
• Now Playing22minFire Extinguishers

How It's Made, Part 4

• Now Playing22minRiding Mowers and Popcorn
• Now Playing22minAirstream Trailers
• Now Playing22minScrewdrivers
• Now Playing21minEscalators and Kevlar Canoes
• Now Playing22minMotorcycle Engines
• Now Playing22minHammers and Colored Pencils
• Now Playing22minBlood Products
• Now Playing22minOil Tankers and Racing Wheels
• Now Playing22minBowling Balls and Radar Guns
• Now Playing22minMusic Boxes and Pepper Mills
• Now Playing22minGears and Kitchen Shears
• Now Playing22minPressure Cookers and Buoys
• Now Playing22minLuxury Watches
• Now Playing22minAlpine Skis and Laser Cutters
• Now Playing22minSocket Sets and Bike Chains
• Now Playing22minFlatware and Cow Bells
• Now Playing22minOlive Oil and Ski Boots
• Now Playing22minCookware and Water Heaters
• Now Playing22minSki Goggles and Diesel Engines
• Now Playing22minFig Cookies and Tool Boxes
• Now Playing22minRevolver Replicas
• Now Playing22minAxes and Racing Karts
• Now Playing22minMetal Golf Clubs and Waffles
• Now Playing22minSails and Walnuts
• Now Playing22minSurfboards and Stickers

How It's Made, Part 5

• Now Playing22minVacuums and Paper Mache
• Now Playing22minLiquor Jugs and Deli Meats
• Now Playing22minNail Clippers and Canola Oil
• Now Playing22minHummus and Sombreros
• Now Playing22minTequila and Silver
• Now Playing22minSalsa and Dragsters
• Now Playing22minAudio Tubes and Snare Drums
• Now Playing22minDecorative Sombreros
• Now Playing22minCheese Graters and Hot Sauce
• Now Playing22minGame Calls and Mayonnaise
• Now Playing22minCorn Tortillas and Bush Planes
• Now Playing22minFolding Kayaks and Pinatas
• Now Playing22minRolled Wafers and Wood Pellets
• Now Playing22minSpeed Skates and Cocoa Beans
• Now Playing22minCustom Steering Wheels
• Now Playing22minWhips and Incense Cones
• Now Playing22minHeather Gems and Instant Film
• Now Playing22minUnderwater Robots and Lasagna
• Now Playing22minLaminated Wood Beams
• Now Playing22minTurbochargers and Enchiladas
• Now Playing22minPatterned Glass Panels
• Now Playing22minIndustrial Wire Ropes
• Now Playing22minChocolate Coins and Pedal Cars
• Now Playing22minFarmed Caviar and Manifolds
• Now Playing22minWax Figures and Awnings

How It's Made, Part 6

• Now Playing22minTissues and Travel Trailers
• Now Playing22minU-Locks and Croissants
• Now Playing22minPrams and Bicycle Tires
• Now Playing22minThinning Shears and Pastries
• Now Playing22min1000th Product
• Now Playing22minNail Nippers and Jade Putters
• Now Playing22minCast Iron Bathtubs
• Now Playing22minGut Strings and Absinthe
• Now Playing22minRubber Gloves
• Now Playing22minPowder Horns and Glass Molds
• Now Playing22minLace and Orchids
• Now Playing22minExternal Hard Drives
• Now Playing22minTea and Alloy Wheels
• Now Playing22minGel Caps and Frozen Pancakes
• Now Playing22minPaper Umbrellas and Coal
• Now Playing22minAluminum Canoes and Marimbas
• Now Playing22minIndy Car Seats and Generators
• Now Playing22minKnee Replacements and Lavender
• Now Playing22minCast Iron Stoves
• Now Playing22minBarber Chairs and Sewage Pumps
• Now Playing22minCar Tires and Silk
• Now Playing22minElectric Stand-Up Vehicles
• Now Playing22minRock Crushers and Steam Irons
• Now Playing22minIndy Steering Wheels
• Now Playing22minBlast Doors and Lipstick

How It's Made, Part 7

• Now Playing22minSkeletal Replicas
• Now Playing22minAutomatic Sliding Doors
• Now Playing22minScuba Lights
• Now Playing22minWood Windows and Cashmere
• Now Playing22minGas Barbecues
• Now Playing22minRecycled Skateboards
• Now Playing22minPlasma Gems
• Now Playing22minThree-Wheel Electric Bicycles
• Now Playing22minWild West Gun Holsters
• Now Playing22minWood Garage Doors
• Now Playing22minGrammy Awards
• Now Playing22minLED Stage Lights
• Now Playing22minFishing Line and Tow Trucks
• Now Playing22minStorage Sheds
• Now Playing22minConcrete Walls and 3D Printers
• Now Playing22minCar Headlamps
• Now Playing22minHandcrafted Skis
• Now Playing22minZip Line Breaks
• Now Playing22minArmored Vehicles
• Now Playing22minMountain Bike Suspensions
• Now Playing22minSki Bindings and Parts Washers
• Now Playing22minGingerbread Houses
• Now Playing22minTraffic Signal Poles
• Now Playing22minTime-Delay Locks
• Now Playing22minBead Wire and Leather Gloves

How It's Made, Part 8

• Now Playing22minCartridge Blades
• Now Playing22minUltra Thin Glass
• Now Playing22minPotash and Wild Rice
• Now Playing22minMetal Nail Files
• Now Playing22minMacarons and Micrometers
• Now Playing22minEndoscopes and Megaphones
• Now Playing22minHollow Disk Pumps
• Now Playing22minNuno Felt and Kimchi
• Now Playing21minCollagen and Plier Staplers
• Now Playing22minThai Barbecues
• Now Playing22minWooden Utensils and Moccasins
• Now Playing22minWood Watches and Raw Pet Food
• Now Playing22minCoffee Roasters
• Now Playing22minOffice Chairs and Lithographs
• Now Playing22minFireplace Bellows, Calissons
• Now Playing22minArtist Brushes and Game Tables
• Now Playing22minFoosball and Marseille Soap
• Now Playing21minFlying Water Bikes and Rasps
• Now Playing21minBerets and Stationary Bikes
• Now Playing21minBistro Sets and Bamboo Lights
• Now Playing22minTechnological Corks
• Now Playing21minPetanque Balls and Pavers
• Now Playing22minLeather Basketballs
• Now Playing22minPower Steering Pumps
• Now Playing22minBasque Pelota Balls

How It's Made, Part 9

• Now Playing22minPlant Oil Extractors
• Now Playing21minWitness Samples
• Now Playing22minLeather Sculptures, Travel Hot
• Now Playing22minSpiral Stairs, Pita Bread
• Now Playing22minRecycled Skateboard Guitars
• Now Playing22minGlass Sculptures, Inductors
• Now Playing22minFish Rubbings, Clay Shooting
• Now Playing22minThrottle Bodies, Mantels
• Now Playing22minRubber Balls, Motion Chairs
• Now Playing22minAerospace Fasteners, Puree
• Now Playing22minWall Beds, Sundae Cups
• Now Playing41minHalloween 2020 Special

How It Really Happened

• Now Playing41minThe Menendez Brothers: Part 1
• Now Playing41minThe Menendez Brothers: Part 2
• Now Playing41minThe OJ Simpson Case: Part 1
• Now Playing41minThe OJ Simpson Case: Part 2
• Now Playing41minWho Killed JonBenet? Part 1
• Now Playing41minWho Killed JonBenet? Part 2
• Now Playing41minStrange Case of Jeffrey Dahmer
• Now Playing41minCapturing the Unabomber

How the World Ends

• Now Playing44minNostradamus
• Now Playing44minNuclear Apocalypse
• Now Playing44minPlanet X
• Now Playing44minBiblical Armageddon
• Now Playing44minPandemic Pandemonium
• Now Playing44minAliens Invade

Semi-Homemade Cooking with Sandra Lee Seasons 1-2

• Now Playing22minOpen House: Tapas and Wine
• Now Playing22minDinner Party
• Now Playing21minTake Out and Take In
• Now Playing22minCookies, Cakes and Cupcakes
• Now Playing22minDesserts and Drinks
• Now Playing22minSexy Soiree
• Now Playing22minCandy
• Now Playing21minComfort Food
• Now Playing22minEasy and Elegant
• Now Playing22minChocolate
• Now Playing22minWeekend Gathering
• Now Playing22minThanksgiving
• Now Playing22minHoliday Show
• Now Playing22minBeach Bash
• Now Playing21minPool Party
• Now Playing22minCooking with Kids
• Now Playing21minCute Cakes
• Now Playing22minAll American Girl Party
• Now Playing21minItalian
• Now Playing22minSemi-Homemade Wedding
• Now Playing21minFrench Foods
• Now Playing21minTea Party
• Now Playing21minBirthday Bash
• Now Playing22minHawaiian Luau
• Now Playing22minIce Cream

Semi-Homemade Cooking with Sandra Lee Seasons 3-4

• Now Playing22minRose Garden
• Now Playing22minRomance
• Now Playing21minTapas and Tinis
• Now Playing22minSailing Luncheon
• Now Playing22minCountry Cooking
• Now Playing22minTake Out and Take In 2
• Now Playing22minBreakfast Breaks
• Now Playing21minChinese
• Now Playing22minSafari
• Now Playing22minTropical Dinner Party
• Now Playing22minPajama Party
• Now Playing21minCarnival Food
• Now Playing21minLow Fat/Healthy 2
• Now Playing21minBeer Bash
• Now Playing21minCajun
• Now Playing22minCoffee Creations
• Now Playing22minBBQ Hoedown
• Now Playing21minChili Cook-Off
• Now Playing21minComfort Food 2
• Now Playing22minFruity Family Foods
• Now Playing22minClover Green
• Now Playing21minMovie and Music Night
• Now Playing21minBunny Cake/Cookie Bake
• Now Playing22minThanksgiving
• Now Playing22minChristmas