Echo, the remarkable matriarch of a family of elephants in Kenya's Amboseli National Park, was most studied elephant in the world, the subject of several books and documentaries, including two NATURE films. For nearly four decades, elephant expert Cynthia Moss, and award-winning filmmaker Martyn Colbeck were on hand to record the trials and triumphs of Echo and her family, documenting the intense loyalties and deep caring that are so fundamental to all elephants, creating a moving record of a life we all can share.

Echo: An Elephant to Remember

Embark with conservation ecologist Chris Morgan on a great challenge: to find and film the Siberian tiger.

Siberian Tiger Quest

Rocks, dunes, sand and dust - large areas of Namibia in southwest Africa are characterized by deserts. Riverbeds full of sand meander through these inhospitable regions. Some of these only have water once every few years when enough rain has fallen in the mountains and the water rushes to the coast - but most of the time the river courses have dried up. And yet they are crucial for the survival of many living beings.