Mireya Mayor

Expedition: Africa takes viewers on an adventure of epic proportions as four renowned explorers attempt to follow the historic journey of Henry Morton Stanley and his search for the "lost" Dr. David Livingstone. The twist? These modern day explorers will have to complete the mission with only a compass, maps and Stanley's journals from the original mission. Its a larger than life journey through the heart of Africa, testing man's endurance under the most severe situations. The explorers face dehydration, deadly animals, disease and each other, knowing that any step could be their last.

Piranhas - the stuff of nightmares and legends. They're infamous for how fast they can devour prey, and are known to attack in groups of up to 100. National Geographic joins a team of scientists heading to the Amazon to investigate a piranha mystery of immense proportions. A fossil of a giant jaw fragment has been identified as an ancient piranha, but with a terrifying twist: the tooth belonged to a fish seven times the size of existing piranha species.

Animal domestication was a major prerequisite for human civilization to evolve. Join National Geographic as we explore how a dramatic shift from wild to tame happened by investigating foxes, chickens, dogs and rats. Travel to Siberia to see how the physiology of foxes changes when only friendly foxes are bred. In Georgia, follow a scientist as he decodes the DNA of a special population of chickens. And in Moscow, a researcher gains insight into domestication by studying a group of stray dogs.

Massive floods in Australia and Pakistan. Deadly mudslides in Brazil. Epic drought and wildfires in Russia. Historic snows and bitter cold across North America. 2010 was one of the most destructive years in history. Join National Geographic as we present the dramatic images and personal stories of this catastrophic weather year.