Rat Heart Grown Video -- National Geographic

Rat Heart Grown Video January 15, 2008—Scientists re-created the heart of a rat and started it beating. The breakthrough could lead to the building of human organs.Welcome to the National Geographic video player. Watch hundreds of free videos from National Geographic, featuring animal videos, news videos, weather videos, nature videos, kids videos, world music videos and other most popular video content including shark videos.Video Sections

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- "Epic" Vase Returned to Italy - January 23, 2008—A 2,500-year-old vase featuring scenes from a Homer poem is among several antiquities returned to Italy after lengthy negotiations with the Metropolitan Museum of Art.
- "Kite Ship" to Use Wind Power - January 17, 2008—Not a sailboat and not a parachute—this German-built ship aims to save fuel by towing a kite to capture wind power high above the water.
- "Lawn Mower" Dinosaur Debuts - November 15, 2007—Lawn mower to the ferns of Africa, the 500-toothed Nigersaurus was unlike any other. A reconstruction goes on display today at National Geographic in Washington.
- "Vick" Dogs in Rehab - January 28, 2008 —Some of the dogs confiscated during a police raid on property owned by NFL quarterback Michael Vick have been placed in a new home in Utah, where they are undergoing rehabilitation.
- Afghan Winter Kills Hundreds - February 8, 2008—Unusually severe winter weather in mountainous Afghanistan has caused more than 650 deaths, according to an Afghan official.
- Albatross Fall for Fish Bait - December 19, 2007—The magnificent, poet-inspiring sea bird is under serious threat, and fishhooks are a key problem. Conservationists say 17 of the 24 albatross species face extinction.
- Amateur Bullfighters Injured - January 22, 2008—An annual bullfighting festival in Colombia brings daredevils from the stands, right into the bullring.
- Amazon Dolphins - November 28, 2007—South American river dolphins are doing pretty well compared to some river dolphins in Asia. But boat traffic, fishing, and logging are still a threat.
- Ancient Cat in Today's Egypt - December 6, 2007—Egyptian Maus may descend from the first domesticated cats in the world. One woman is working to help save them.
- Ancient Croc Unveiled - February 1, 2008—An 80-million-year-old fossil found in Brazil could be a "missing link" between prehistoric and modern-day crocodiles, experts say.
- Antarctica Images Best Yet - November 28, 2007—A nearly cloudless satellite image is the most geographically accurate and true-color map of the southern continent—at ten times the resolution of previous NASA views.
- Anti-Whaling Activists Released - January 18, 2008—Two anti-whaling activists were returned to their ship in Antarctic waters Friday after a tense standoff with Japanese whalers.
- Astronauts Install New Tower - October 30, 2007—Astronauts install a solar power tower on the International Space Station and consider extending their mission.
- Biggest Trout Fished in Asia - November 13, 2007—Fishing the world's largest trout, Mongolia's taimen, is encouraged—to help save it.
- Buddhism Rebounds in Mongolia - January 4, 2008—After decades of persecution that began under Stalinist rule in the 1930s, Buddhism and monasteries are now on the rebound in Mongolia.
- Carnivals Around the World - February 6, 2008—Sequins and feathers in Brazil, sheepskin-clad men in Hungary—celebrations around the world mark the days before many Christians begin pre-Easter fasting.
- China's Snow Worst in 50 Years - January 29, 2008—Heavy snows in southern China have wreaked havoc for residents heading home during the busy Lunar New Year travel season.
- Church Made From Tanker - February 6, 2008—Worshippers step into a converted railway tanker, now used as a chapel, in a small Ukrainian village.
- Clay Eating Discouraged - November 8, 2007—Poverty and tradition drive some Haitians to eat cakes of clay, salt, and butter. Nutritionists fight local beliefs about the dish's merits.
- Dinosaur Mummy Found - December 3, 2007—A dinosaur mummy found in North Dakota reveals astonishing new information about the size of the reptiles, their skin, and how quickly they moved.
- Drug Lord's Hippos Thriving - January 25, 2008—A herd of hippos once owned by Pablo Escobar, Colombia's famed drug lord, run free on Escobar's former estate—creating a problem for the government.
- Eating Rat at the New Year - February 4, 2008—A long tradition of rat eating—here in Vietnam—is especially relevant at this lunar New Year ringing in the Chinese zodiac's Year of the Rat.
- Ecuador Volcano Erupts - February 8, 2008—The Tungurahua volcano in Ecuador erupted again this week. The volcano has been active on and off since 1999.
- Elusive Tree Kangaroo Helped - February 5, 2008—Saving the unusual marsupial's habitat requires cooperation from everyone—right down to the rare animals themselves, scientists in Papua New Guinea find.
- Explosions May Save Wetlands - October 31, 2007—The Nature Conservancy has blasted through 1950s-era levees in the Williams River Delta in southern Oregon to save the wetlands and endangered fish species.
- Farm Fish Threaten Wild Fish? - January 31, 2008 —Fish farms currently provide sustainable populations of fish for eating, but fish raised in open-net farms can spread disease and parasites to wild fish.
- Gandhi's Ashes Spread - January 30, 2008—Sixty years to the day after his assassination, some of Mahatma Gandhi's ashes were scattered across the Arabian Sea Wednesday. Descendants of India's iconic, non-violent leader took part in the ceremonies.
- Giant Fish Faces Big Trouble in China - September 11, 2007—Join biologist Zeb Hogan of the National Geographic Society's Megafishes Project as he explores the threats facing the giant Chinese sturgeon and the efforts underway to save it.
- Gorillas Find Refuge in Uganda - October 22, 2007— A Ugandan national park is a sanctuary for some 325 mountain gorillas, about half of the critically endangered species' population.
- Grisly Whaling Video Released - February 7, 2008—To call attention to Japanese whaling practices, the Australian government released video captured on the ocean near Antarctica. Warning: graphic imagery.
- Heavy Snow Snarls Georgia - February 1, 2008—Parts of the Eurasian country have been digging out from massive snowfall, with up to ten feet (three meters) reported in the central regions.
- Hen Lays Green Eggs - January 30, 2008—A hen in a small Mexican village has become a celebrity—it lays eggs with green shells. It's not the diet: Genes determine shell color.
- Hillary In His Own Words - January 11, 2008—Sir Edmund Hillary describes his historic climb to the top of Mt. Everest...and reveals why there is no photo of him on the summit.
- Hillary In His Own Words - January 11, 2008—Sir Edmund Hillary describes his historic climb to the top of Mt. Everest...and reveals why there is no photo of him on the summit.
- Iran Pushes Science - February 5, 2008—Embryonic stem cell research, animal cloning, and a controversial nuclear program are part of Iran's efforts to establish itself as a science and technology leader.
- Iran Reports Rocket Launch - February 4, 2008—Iran says it opened a new space center Monday and launched the country's first rocket to reach space, according to state-run media.
- Japanese Whaling Interrupted - January 14, 2008—Japanese whaling near Antarctica has been interrupted by the environmental group Greenpeace.
- Kenya's Tourism Slump Hurts Locals - January 25, 2008—Widespread news coverage of Kenya's violence and political turmoil has caused a drop in wildlife tourism that is expected to impact the livelihoods of local people.
- King Tut's Mummy Goes Public - November 4, 2007—On Sunday, archaeologists moved the mummy of the famous Egypt pharaoh into a climate-controlled glass case, revealing his face publicly for the first time.
- Largest Spitting Cobra Found - December 20, 2007—A new species of spitting cobra is believed to deliver more venom with a single bite than any other cobra on the planet.
- Mass Grave Found in Germany - January 24, 2008—Bodies dating back more than 50 years have been uncovered in Kassel, Germany. Experts speculate they may be victims of a Nazi labor camp or a mid-1800s epidemic.
- Module Added to Space Station - October 29, 2007—Astronauts break in the new addition to the International Space Station, conduct a second space walk, and plan for a third.
- Mozambique Floods Worsen - January 18, 2008—Thousands are displaced and awaiting food aid as southern Africa's Zambezi River floods.
- NASA Asteroid Mission Launch - September 27, 2007—NASA's DAWN spacecraft took off from Cape Canaveral, Florida, this morning, kicking off its eight-year mission to study a pair of asteroids beyond Mars.
- Ocean-Saving Coral Reef - November 30, 2007—There aren't enough biologists to keep tabs on the Dominican Republic's threatened coastal reefs, so volunteer divers are pitching in.
- Panama Golden Frog Threatened - October 15, 2007—Panama's golden frog is a symbol of good luck and prosperity. Now researchers are fighting to save the rare amphibian from a naturally occuring—and deadly—fungus.
- Partial Solar Eclipse Down Under - February 7, 2008—See the partial eclipse of the sun that delighted sky-watchers in Australia and New Zealand on February 7.
- Rangers Protect Belize Reserve - January 17, 2008—Park rangers in Belize are up against loggers and poachers in this segment from Wild Chronicles' Climate Connections series.
- Rare Cranes Taught to Migrate - November 5, 2007—Endangered whooping cranes bred in captivity must be taught to fly south. Once the birds learn the route from Wisconsin to Florida, they remember it.
- Rat Heart Grown - January 15, 2008—Scientists re-created the heart of a rat and started it beating. The breakthrough could lead to the building of human organs.
- Rio Carnival Honors Japanese - January 31, 2008—Kicking off a yearlong celebration of Japanese immigrants' arrival in Brazil a hundred years ago, revelers honor the world's largest Japanese community outside Japan.
- Ruins Found Near Machu Picchu - January 16, 2008—The lost citadel of Paititi may have been found, says the mayor of the Peruvian town where archeological remains were recently uncovered.
- Shuttle Astronauts Space Walk - October 26, 2007—Discovery shuttle astronauts begin the difficult job of attaching an Italian-made module to the International Space Station. The project is expected to take ten days.
- Shuttle Discovery Launches - October 23, 2007—The space shuttle Discovery launched Tuesday from Cape Canaveral, Florida, on a mission to expand the International Space Station.
- Space Shuttle Atlantis Launches - February 7, 2008—NASA launched the space shuttle Atlantis Thursday afternoon for a mission to attach the European Space Agency's Columbus laboratory to the International Space Station.
- State Funeral for E. Hillary - January 22, 2008— New Zealand crowds honored Everest pioneer Sir Edmund Hillary who received a state funeral. In Nepal, Sherpas held traditional prayer services for the beloved mountaineer.
- Surviving Deadly Everest - January 11, 2008—Climbing to the top of the world is an often fatal quest. But for many climbers, reaching the peak is a thrill like no other.
- Talking Parrot Alex Dies - September 13, 2007—Alex, the "genius" talking parrot, died this month at age 31. See a 1999 television segment that shows Alex at work with Irene Pepperberg, a psychologist who worked with him for years.
- Time Capsule From 1791 Found - January 16, 2008—Artifacts, coins, and parchments have been found in a lead box in a hollow stone in México City's Metropolitan Cathedral.
- Top Climber Recalls Hillary - January 11, 2008—One of the world's most accomplished mountain climbers reflects on the life of a legend.
- Tourist Spaceship Model Unveiled - January 24, 2008—Virgin Galactic's Richard Branson and aerospace designer Burt Rutan debuted a model of a ship planned to carry commercial passengers on a suborbital joyride within a few years.
- U.S. Mining Law Contested - February 1, 2008—An 1872 law that allows mining companies to buy land in the U.S. West for about $5 an acre is running smack into 21st-century sensibilities.
- UK Dino Ate More Like a Croc - January 14, 2008—A dinosaur discovered 25 years ago in the U.K. survived on a diet of fish—much like a crocodilian.
- Unique Coffins Crafted in Ghana - January 28, 2008—An unusual tradition has developed in the West African country of Ghana—making unique, colorful coffins for the dead.
- Violence in Kenya Escalates - January 29, 2008—After an opposition lawmaker was shot dead, violence in Kenya escalated, heightening tensions between rival ethnic groups and sending many fleeing for safety.
- Warming To Flood Causeway? - January 25, 2008—The legendary Giant's Causeway in Northern Ireland, a UNESCO World Heritage Site, is under threat from rising sea levels due to global warming, a new study says.
- Whaling Confrontation Escalates - January 17, 2008—Australia is retrieving two anti-whaling activists held on a Japanese whaling ship they jumped aboard this week in Antarctic waters.
- Yale Agrees to Return Machu Picchu Artifacts - September 20, 2007—Yale University has agreed to return thousands of Machu Picchu relics to the government of Peru in what many officials are hailing as a landmark deal.
- Year of the Rodent Pet? - February 5, 2008—In the Chinese zodiac's Year of the Rat, rodent pets are all the rage. In Taiwan, marsupial sugar gliders also are gaining fame.
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