Dugald Maudsley

David Attenborough investigates the remarkable life and death of Jumbo the elephant - a celebrity animal superstar whose story is said to have inspired the movie Dumbo. Attenborough joins a team of scientists and conservationists to unravel the complex and mysterious story of this large African elephant - an elephant many believed to be the biggest in the world. With unique access to Jumbo's skeleton at the American Museum of Natural History, the team work together to separate myth from reality. How big was Jumbo really? How was he treated in captivity? And how did he die? Jumbo's bones may offer vital clues.

Thousands of Clydesdales horses once roamed the Clyde Valley near Glasgow. Today, they're all but gone. Passionate about saving the Scottish herd, Glaswegian Janice Kirkpatrick travels to the heart of the Canadian Prairies where one family has preserved the ancient Clydesdale bloodlines for five generations. Join Janice as she embarks on an unprecedented two-year quest that will alter her life and change the destiny of an entire breed.

Lockdown plunges head-first into the gritty underworld of some of America's most fearsome prisons. Three thrilling hours provide an unprecedented immersion into life in the "big house": vicious gang leaders, a "prison pretty" newbie, and a gangster turned rat. In this world of absolutes, predators stalk their next prey, gang commanders order hits from isolation, and inmates are armed with deadly weapons. But the prisons are striking back. Institutional weapons of choice include state of the art surveillance and old school isolation. Officers are armed to the hilt with steel batons and pepper spray. Our cameras are there, in the middle of this real-life war zone, where only the strong - and the devious - survive.

Anthony Morgan explores the extraordinary ways that animals hear and produce sound, and the crucial role sound plays in the lives of animals around the globe - from birth to surviving adulthood and finding a mate.