BBC Earth

The impact of summer on polar bears, musk oxen and penguins, who struggle to cope with an unlikely problem - heat.

Stanley Tucci sets out to explore how Italian immigration has transformed the food scene in his adopted hometown of London.

Guangdong is China's most developed province, but wildlife continues to thrive alongside its people; myriads of pollinators, rare orchids, snakes, and Chinese Crocodile lizards.

How dramatic twists in Earth's story enabled humans to go from being part of nature to controlling it, and what can be learnt from this tale before it's too late.

Michael enjoys the sites from the back of a classic 1960s Lambretta, scales the magnificent Duomo cathedral, is given a crash course on espresso etiquette and learns to dress like a Milanese.

Ash Dykes explores Zhangjiakou's ancient Wall, skis Chongli, follows explorers at Wulouggou, and reaches the Yellow River's historic convergence.

Stanley Tucci sets out to explore how Italian immigration has transformed the food scene in his adopted hometown of London.

Michael gets behind the wheel of a vintage racing car, makes a mystical discovery at the magnificent Castello Sforzesco, stirs up an aperitivo and throws his hand at one of Milan's favourite sports.

Four rival families - leopards, hyena, wild dogs and lions - all try to claim a rich corner of Zambian paradise as their home. Who will succeed in ruling this precious kingdom?

Michael Portillo boards Vietnam's spectacular Reunification Railway to make a 1,000-mile journey from Ho Chi Minh City to Hanoi. He visits the container port of Haiphong and finishes in Halong Bay.

A devastating typhoon in the Philippines destroys communities, leaving millions homeless, while a British hiker narrowly escapes an avalanche in Kyrgyzstan's Tian Shan Mountains.

Michael gets behind the wheel of a vintage racing car, makes a mystical discovery at the magnificent Castello Sforzesco, stirs up an aperitivo and throws his hand at one of Milan's favourite sports.

Four rival families - leopards, hyena, wild dogs and lions - all try to claim a rich corner of Zambian paradise as their home. Who will succeed in ruling this precious kingdom?

A devastating typhoon in the Philippines destroys communities, leaving millions homeless, while a British hiker narrowly escapes an avalanche in Kyrgyzstan's Tian Shan Mountains.

Michael gets behind the wheel of a vintage racing car, makes a mystical discovery at the magnificent Castello Sforzesco, stirs up an aperitivo and throws his hand at one of Milan's favourite sports.

Four rival families - leopards, hyena, wild dogs and lions - all try to claim a rich corner of Zambian paradise as their home. Who will succeed in ruling this precious kingdom?

Michael Portillo boards Vietnam's spectacular Reunification Railway to make a 1,000-mile journey from Ho Chi Minh City to Hanoi. He visits the container port of Haiphong and finishes in Halong Bay.

A devastating typhoon in the Philippines destroys communities, leaving millions homeless, while a British hiker narrowly escapes an avalanche in Kyrgyzstan's Tian Shan Mountains.

Nick Knowles travels from the Alps to the Adriatic in another entertaining railway adventure as he journeys by train through the breath-taking scenery of Slovenia and Croatia.

Four rival families - leopards, hyena, wild dogs and lions - all try to claim a rich corner of Zambian paradise as their home. Who will succeed in ruling this precious kingdom?