Henry Carter Hull

The Smithsonian's many facilities include the National Zoo and its living collections. Focus on four animals' stories that shed light on extinction and conservation of species in America: Sandy the buffalo, Tioga the bald eagle, Martha the passenger pigeon, and a pair of pandas.

Host Niall McCann talks to Ralph Chami of the Institute for Capacity Development at the IMF. Ralph invented the economic model that quantifies the carbon capacity of marine mammals.

While we share our homes and lives with our dogs, have you ever stopped to wonder how they ‘see’ the world? The second episode reveals that dogs experience life in unique and incredible ways. Dogs use smell, hearing and sight very differently from us, but thanks to recent developments in the field of canine science, we can take a journey into how the doggy mind really works.

Tells the stories of orphaned baby elephants living at the Thai Elephant Conservation Center (TECC) due to the loss of their mothers and habitats. They discover ways to cope with trauma while living with their adopted mother elephants at the nursery, and learn to communicate with their "mahouts" - lifetime trainers and companions. The film goes on to chronicle the experiences of adult "working" elephants and their mahouts, dragging logs in the teakwood...

Traces the fascinating history of the human/dog relationship. Dogs were the first animal ever domesticated and this long-shared alliance has intertwined their biology with ours. This episode explores the evolution of dogs’ most powerful ‘weapon’ against us - puppy-dog-eyes, as well as studies that prove dogs can read our facial expressions and their uncanny ability to understand our emotions. Scientists reveal dogs are so uniquely skilled at...

Lionfish, long prized in home aquariums, have invaded the Atlantic, and are now one of the ocean’s most successful invasive species, wreaking havoc in waters across the globe. Join ocean explorer Danni Washington on a journey to find out how they took over, why they’re doing so much damage, and what can be done about it. And look into the impacts of invasive species in a globalized world.

Where did humans originate? When did we first start wearing clothes? How did the agricultural revolution spread? Delve into historical questions that DNA has answered, involving figures such as King Tut, Genghis Khan, Thomas Jefferson, and King Richard III. Consider Abraham Lincoln to ask where we draw the line in reading genetic secrets from the past.

In the remote and rugged mountains of the American West, two young women contemplate their futures as they spend their last summer together herding cattle and braving the elements.

Deep in the heart of Louisiana lies America's largest swamp a million miles of inhospitable bayous, marshes and wetlands where nature rules and humans struggle to tame it. Many of its inhabitants are the hardened descendants of French refugees.

The ivory trade is a cruel business. Every 15 minutes an elephant is killed for its ivory. 65 percent of the continent's elephants have been killed for their ivory in the last five years. Crime syndicates involved in gun, drug and human trafficking reap huge profits from the ivory trade. So do dangerous terrorist groups including Joseph Kony's Lord's Resistance Army and al-Qaeda affiliate al-Shabaab. These terrorists threaten the safety and stability...