The Serengeti in East Africa is the site of the largest mass animal migration on earth. Some 1.2 million wildebeest present each year a distance of about 1500 kilometers - always in search of fresh pastures. But nowhere is there more meat and carrion than on their migration.

In the middle of winter, with 17 hours of darkness, 500 competitors head north of Inverness for one of the world's toughest mountain bike races, the Strathpuffer 24-hour marathon. And once again, this year conditions are testing - with ice and mud pushing the competitors and their bikes to the very limit.

In February 2013, researchers from the University of Leicester announced that they had found the body of England's most notorious monarch, Richard III, underneath one of the city's car parks. The story broke around the world and was watched by nearly five million people in an exclusive Channel 4 documentary.

"Freemasons On Trial" that premieres on National Geographic Channel this coming Sunday comprehensively examines the Freemasons. Dispelling rumours about Freemasons, the two-hour programme helps to distinguish facts from fiction behind this enigmatic group with millions of members worldwide.

How would you feel about eating deep fried locusts, ant egg salad or barbequed tarantulas? This documentary sees presenter and food writer Stefan Gates immerse himself in the extraordinary world of hardcore insect-eating in a bid to conquer his lingering revulsion of bugs and discover if they really could save the planet.

On the eve of the tenth anniversary of the Iraq War, Panorama reveals how key aspects of the secret intelligence used by Downing Street and the White House to justify the invasion were based on fabrication, wishful thinking and lies.