Galápagos Islands’ sea cucumber dispute

During the Vietnam War, North Vietnamese VietCong guerrillas built a vast network of tunnels in the south of the country as part of the insurgency against the South Vietnamese government and their American allies. The tunnel network was a key base and shelter for the North Vietna ...  Show more

In 1934, one of the most controversial propaganda movies ever made - Triumph of the Will – was filmed at the Nazis’ Nuremberg rally. The two-hour picture was directed by Leni Riefenstahl, once described as Adolf Hitler’s favourite filmmaker. Over four days, scenes of military mar ...  Show more

Max Pearson presents a compilation of this week's Witness History programmes from the BBC World Service.

You'll hear the story of how a marine biologist made a shocking discovery finding small bits of plastics floating thousands of miles of the east coast of America.

National Geographic Explorer in Residence Enric Sala quit academia to explore and protect the sea. On his journey to keep the ocean pristine, he has swam with jellyfish in Palau, gone diving in the Arctic, and got acquainted with sharks at Millennium Atoll. Sala’s explorations ha ...  Show more

Call off the search for the new kale: we’ve found it, and it’s called kelp! In this episode of Gastropod, we explore the science behind the new wave of seaweed farms springing up off the New England coast, and discover seaweed’s starring role in the peopling of the Americas. The ...  Show more

Sargassum seaweed was recorded as far back as the 15th century when Christopher Columbus wrote in his expedition diaries about miles and miles and miles of dense seaweed as he crossed the Atlantic Ocean. In 2011, a great mass of this seaweed emerged, stretching from West Africa t ...  Show more