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!

All interesting facts about the 2012 Olympics in London, thanks to our lovely presenter Zara, exclusively for our Yabla viewers!

Pop Topic Minute Reports: Christina Aguilera was arrested along with her boyfriend Matthew Rutler in West Hollywood. Surveillance tape backs Lindsay Lohan’s Story and Lady Gaga debuts her new music video Born This Way.

PopTopicTV Min Reports: Seems like stars these days can’t seem to keep there clothes on from Britney to Rihanna and even RiRi’s ex-Chris Brown got in the act, well… kinda?

Sting talks about the protection of the rainforest and the Rainforest Project of the Prince of Wales.

The Prince of Wales has set up a rainforest project in order to protect the remaining rainforests on this earth. He talks about the seriousness of climate change and how it will affect our lives and the lives of our children and grandchildren. He appeals to us to support him and his project.

Prince Charles launches a campaign to save the rainforests in an online video broadcast, featuring Hollywood stars Robin Williams, Daniel Craig and Harrison Ford, as well as Princes Harry and William.

Rod Stewart and Penny Lancaster Stewart support the Prince’s Rainforests Project.