In late summer, the ibex are feeding in the high pastures, preparing for the winter ahead. The young males jostle and clash horns, testing their strength in a series of energetic show fights. As night falls, we catch glimpses of the powerful red deer, and Biker the eagle takes flight in an effort to coax her chick into the air.

Biker’s chick is strong enough, but lacks the courage to fly the nest. She must use food to tempt it into flight. The nest will then be empty, and other species can make use of its strength and secure position to raise their broods.

Eagle expert Andreas Mayrhofer climbs down to the empty eagle nest, where he will collect evidence of the eagles’ diet and habits. Autumn has arrived, spreading its mellow colors across the Alps. But this is no time to relax, and the eagles’ prey must be ever watchful. An escaped rabbit catches the eye of a hungry eagle.

A century ago, the golden eagle was a rare sight in the Alps and was on the verge of extinction. Nowadays, this bird of prey is better understood and protected and there are some one hundred and fifty birds just in the Karwendal and Northern Tyrol. Our young eagle makes his first kill, and soon his life will change as he must seek out his own hunting territory, alone in this mountain paradise.

Imagine having the chance to make the stars of stage and screen look perfect, and come face to face with the Royal family, every day. Watch and share Rebecca's London story as the colouring artist at Madame Tussauds London shares some of the behind the scenes secrets of her role, the traditional techniques used to create the ever-changing wax figures on show and the places she loves in London when she's not rubbing shoulders with the rich and famous.

Meet Barney, one of the Yeoman Warders of The Tower of London, known as Beefeaters, who lives and works at the royal palace. Watch and share his legendary London story. From his passion for making sure ravens stay at The Tower and pride in carrying out one of the oldest traditional ceremonies in history, Barney explains why he passionately believes London is the greatest city on earth.

Do you know your Turner from your Warhol? If not, don't worry, London is the perfect place to explore the art world through its wealth of museums. Watch and share Marcus's London story and let him take you on a journey of discovery. This Tate Modern curator is just one of the passionate staff waiting to introduce you to the people and ideas housed within the walls of the imposing former power station. Directly opposite St Paul's Cathedral across the Millennium Bridge, Tate Modern sits on the South Bank among one of the most vibrant new parts of the city.

The trailer for the Marx Brothers’ fourth film Horse Feathers.

You've made it to the final round of a game show, and get to pick between 3 doors, one of which has a car behind it! You make your choice, and then the host decides to show you one of the wrong answers. He then offers you the opportunity to change your choice. Should you do it? Find out just how wrong human intuition can be in this classic Monty Hall Problem.

They can flow like a liquid and bounce back like a solid. Masses of fire ants show a duality that intrigues physicists.

Meet Leford Green, an up and coming hurdler who represented Jamaica at the 2012 London Olympics as a member of their highly successful track and field team.

Meet Maria Michta, a member of the United States' Olympic track and field team at the Summer Games in London. Enjoy!

Meet Megan Kalmoe, a member of the United States' Olympic rowing team at the Summer Games in London. Enjoy!

Egyptian athlete Omar El Ghazaly, a discus thrower and competitor in the Olympics, talks about his sport and his motivations.

Meet Teresa Gabriele, a member of Canada's Olympic basketball team at the 2012 Summer Games in London. Enjoy!