Just how does the cuckoo trick other birds into accepting its eggs and raising its young? In this film, new photography is combined with archive footage and the latest scientific findings to solve a puzzle which, as narrator David Attenborough explains, has perplexed nature-watchers for thousands of years.

A mother grizzly bear brings up her two cubs in the wilds of Alaska. She must keep them safe from prowling males, teach them to hunt and prepare them to survive the savage winter.

This moving film reveals the differing fortunes of a mother polar bear and a mother grizzly bear, and their new-born cubs, in a rapidly-changing world. The shrinking Arctic ice may be making life much tougher for polar bears, but it is offering new opportunities for grizzly bears to the south.

Jonathan Scott narrates the extraordinary story of the leopard - the one big cat that still survives across half the world while tigers, cheetahs and lions are all struggling. By following the lives of leopard mothers and their cubs in East Africa, the film investigates what it is about the natural history of these cats that makes them born survivors. Perhaps the most extraordinary revelation is that leopards are living undercover on farms and even in cities across Africa and Asia.

The great flood in the Okavango turns 4,000 square miles of arid plains into a beautiful wetland. Elephant mothers guide their families on an epic trek across the harsh Kalahari Desert towards it, siphoning fresh water from stagnant pools and facing hungry lions. Hippos battle for territory, as the magical water draws in thousands of buffalo and birds, and vast clouds of dragonflies. Will the young elephant calves survive to reach this grassland paradise?

The great flood in the Okavango turns 4,000 square miles of arid plains into a beautiful wetland. Elephant mothers guide their families on an epic trek across the harsh Kalahari Desert towards it, siphoning fresh water from stagnant pools and facing hungry lions. Hippos battle for territory, as the magical water draws in thousands of buffalo and birds, and vast clouds of dragonflies. Will the young elephant calves survive to reach this grassland paradise?

Georg's mother dumps her grandson Flemming at the petrol station with his father.

A chronicle of Bob Dylan's strange evolution between 1961 and 1966 from folk singer to protest singer to "voice of a generation" to rock star.

It's 30 years since Manchester four-piece The Smiths changed the face of British pop with their debut single Hand In Glove. In this half-hour Culture Show special, fellow Mancunian and lifelong fan Tim Samuels sets out to find out why The Smiths have such a special place in the hearts of a generation of Brits.

Humans have long wondered if the universe may harbour other intelligent life forms. But perhaps we need look no further than our oceans?

For the first time, the UK's biggest employers are having to reveal the average wages they pay men and women. At the same time, the BBC and many other organisations find themselves in battles over equal pay. Almost 50 years after the passing of the Equal Pay Act, why are women still not being paid as much as men?

Most of our water comes from rivers, and environmentalists fear we are pushing some of them and the wildlife they support to the edge. With many of Britain's rivers at the limit of what can sustainably be taken from them, Simon Boazman investigates whether the water industry and its regulators are doing enough to protect the nation's rivers.

Evidence of racist violence and anti-semitism at Polish and Ukrainian football matches.

On verdict day of one of the most eagerly awaited trials in recent history, this Panorama Special on the Stephen Lawrence case reveals the untold story of the murder that changed Britain. For more than a year, reporter Mark Daly and the Panorama team have exclusively followed Stephen's mother Doreen Lawrence as her 18-year fight for justice for her murdered son neared its conclusion.

06-01-2007, A humpback whale mother and calf embark on an epic journey from tropical coral paradises to storm ravaged polar seas.

Cities are growing at a faster rate than any other habitat on Earth. They may seem an unlikely place for animals to thrive, but they can be a world of surprising opportunity.

Pompeii: one of the most famous volcanic eruptions in history. We know how its victims died, but this film sets out to answer another question - how did they live?

Deep underground in a vault beneath Paris lives the most important lump of metal in the world - Le Grand K. Created in the 19th century, it's the world's master kilogramme, the weight on which every other weight is based. But there is a problem with Le Grand K - it is losing weight. Professor Marcus du Sautoy explores the history of this strange object and the astonishing modern day race to replace it

Documentary film which explores how Prince - showman, artist, enigma - revolutionised the perception of black music in the 1980s with worldwide hits such as 1999, Kiss, Raspberry Beret and Alphabet Street.

In the late 1980s Public Enemy were the biggest rap group on the planet. Their mission: to raise the consciousness of a generation. With a rebellious attitude to match their militant image they sold millions of records preaching pro-black politics to fans of all races, all done through a groundbreaking wall of noise.

The set features many of the songs that made them one of the darlings of Britpop, including Do You Remember the First Time, Sorted for E's & Wizz, Babies and, of course, Common People.

Narrated by Peter Capaldi, this opener of a three-part documentary series in BBC FOUR's celebrated 'Britannia' strand is scheduled to chime with the 35th anniversary of the Queen's Silver Jubilee and the arrival of punk as national and then international music culture.

Daydreaming England was about to be rudely awakened as punk emerged from the London underground scene. A nation dropped its dinner in its lap when the Sex Pistols swore on prime time television. Punk had finally found its enemy- the establishment.

Punk had shown what it was against - now what was it for? In the wake of the Pistols' demise a new generation of musicians would re-imagine the world they lived in through the music they made.

Footage of :- Sex Pistols, Clash, The Jam, Buzzcocks, Sham 69, X Ray Spex, The Skids, Siouxsie & The Banshees, The Undertones, The Damned, Ian Dury, Joy Division & more..

Arguably one of the greatest sets at the Glastonbury Festival in its entire 40 years started when Oxford's Radiohead took to the Pyramid Stage on Saturday June 28th 1997.

As the creative powerhouse behind hugely influential band The Kinks, Ray Davies was responsible for writing some of the best-loved songs of the 60s, including pop classics You Really Got Me, Tired of Waiting For You, Dedicated Follower of Fashion, Sunny Afternoon and Waterloo Sunset.

The acclaimed BBC Four Britannia series moves into the world of British reggae.

Featuring a substantial house band led by musical director Dennis Bovell, founder of British reggae band Matumbi and producer of both Linton Kwesi Johnson and The Slits, the concert is a celebration of reggae in Britain from the dawn of the Seventies through the mid-Eighties.

As Donald J Trump takes the oath of office, the New York Times's New York and Washington bureaus prepare to cover an administration unlike any other.