President Vladimir Putin has put Russia's nuclear forces on high alert. The theory is that the possibility of mutually assured destruction is the strongest of reasons not to press the button. But the pressure is mounting.

Strict water restrictions come into force for millions of people in California as the US west coast continues to experience a crippling drought.

People are increasingly interested in seeing animals in natural settings, so traditional jail-like zoos are giving way to open-plan zoos, and to eco-tourism.

Barbary macaques are among the most popular tourist attractions in Gibraltar. The apes have a taste for junk food, which enables tourists to see them up close and allows scientists to easily capture them for research.

We leave the macaques in Gibraltar to travel to the Galapagos Islands to learn about marine and land iguanas.

The segment focuses on the alien striped iguanas of the Galapagos Islands, albinism in a variety of animals, and the peppered moth.

The last segment focuses on Australia. We visit the Warrawong Earth Sanctuary, where there are breeding programs to reintroduce such indigenous animals as bandicoots and quolls, creatures that came close to extinction.

The honey badger is described as the most fearless animal on the planet. Although barely a foot tall, they have a reputation for attacking just about anything—from venomous snakes to full-grown lions. And they are not exactly meant for captivity: Stoffel the honey badger escapes from his enclosure regularly using anything from balls of mud to a rake.

Justin Bieber shows BBC Radio 1 how he spends his free time at home.

Grimmy rigged up Harry Styles to a heart monitor to see what images would cause an increased heart rate. Will it be Ryan Gosling, a briefcase full of money, Zayn Malik, or purple shoes?

The BBC looks at a new and innovative renewable energy invention, Kite Power Solutions. It is estimated that 30 kites could provide electricity for 75,000 homes.

Jimmy Carter says: “I had the song in my head as I started looking around the famous Bonzai Pipeline in Hawaii March 16, 2008. The surfing that day was good. The girls on the beach, though few in number, seemed to fit this song, especially the girl with the board! I apologize for the last shot but I couldnt help myself….”
Music by the Beach Boys

This is the music video for “I Know Your Name” from the album “What’s Mine is Yours” by the New York/Berlin band Bee and Flower, featuring singer Dana Schechter and directed by Josh Graham.

‘Waiting Room’ is both stark, haunting visual experience and scathing critique of modern medicine’s reckless practice of over-prescribing modern prescription drugs. From BEE AND FLOWER’S album (2012) SUSPENSION.

The Berlin/New York based band Bee and Flower, led by singer and bassist Dana Schechter, plays their haunting song "Swallow Your Stars" in a dilapidated church outside of Prague.