Operation Breakthrough: Fighting to save thre...

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 1982, audiences around the world fell in love with a gentle alien stranded on Earth and the young boy determined to help him get home. Steven Spielberg's E.T. the Extra-Terrestrial became a global phenomenon and gave us one of cinema's most memorable lines, ‘E.T. phone home.’P ...  Show more

Baleen whales were almost hunted to extinction. Now they face a new threat – global shipping. But despite humans blighting their lives, can they now recover and help revive ocean life?Justin Rowlatt speaks to two researchers who observe these intelligent, sociable giants up close ...  Show more

From 6,000-year-old cave paintings to silver screen stars in movies like Free Willy, whales have long captured the human imagination. And it makes sense—they're among the largest and most intelligent creatures to ever live on our planet. This time on Sidedoor, we’ll explore ou ...

The mass stranding of dolphins, orcas and whales is depressingly common. We join a team on the East Coast of the United States who have dramatically improved the survival rates of beached dolphins there. And we are with them as they fight to save a dolphin mother and calf. Plus w ...  Show more

Meet three homosapiens who are passionate about preserving the future of other species.