Focus on Africa - Victory for Nigeria’s president at supreme court

Bola Tinubu was sworn in as Nigeria's president in May this year, after winning the country's most competitive election since the end of military rule in 1999. Defeated candidates Atiku Abubakar and Peter Obi challenged his victory in court, alleging the result was manipulated. On Thursday, Nigeria's Supreme Court unanimously ruled against the challenge. What does this mean for politics in Nigeria?

Also as Turkey celebrates its 100th anniversary as a Republic, we look at the growing relationship between the country and Africa. What's Turkey's vision for the continent?

And fans gear up ahead of the Rugby World Cup final on Saturday, as South Africa's Springboks take on New Zealand's All Blacks!

Science In Action - Bird flu reaches Antarctic region

Fear that the highly infectious variant of avian influenza, H5N1, would reach the Antarctic region and put isolated bird populations at risk has finally come to fruition as the first birds on Bird Island in the Atlantic Ocean have come down with the devastating illness. Science manager of the island, Ashley Bennison, explains the situation. Then, from one extreme climate to another - mummified mice have been found on the summit of volcanoes across the Andes, raising questions as to the capacity for vertebrates to survive in extreme conditions.

Kevin Langergraber has been studying the Ngogo chimpanzee community in Uganda for over 20 years. Now, Kevin and colleague Brian Wood tell us how this group are experiencing something thought to be unique amongst humans (and some whales): menopause.

And, how geophysicist Amir Kahn used seismic activity on Mars to understand what the core of our neighbouring planet is made of.

Presenter: Roland Pease Producer: Ella Hubber Editor: Martin Smith Production Co-ordinator: Jana Bennett-Holesworth

(Image: Wandering Albatross, Diomeda exulans, displaying at Cape Alexandra above Bird Sound and Bird Island in background South Georgia. Credit: Education Images/Universal Images Group via Getty Images)

Focus on Africa - Is Niger being treated unfairly?

It's three months since the coup in Niger, when Mohamed Bazoum was forced from office. Sanctions have been imposed by ECOWAS and the AU. In an interview with the BBC, the prime minister of Niger’s ruling military junta, Ali Mahaman Lamine Zeine says, Niger is being treated unfairly.

Also Sudan's warring parties resume talks in Saudi Arabia. Can they agree on a ceasefire?

And we'll meet Ghanaian musician and Kologo player, Stevo Atambire.

Unexpected Elements - Fashion to dye for

Lagos Fashion Week makes some unexpected connections to vegan wool, 1920s car marketing, and Right to Repair legislation. If we consider our obsession with the clothes we wear to be some result of sexual selection, do any other animals evolve their self-expression with such frequency?

Dr Ellen Garland of St Andrew’s University tells how male humpback whales change their song with surprisingly infectious rapidity, and talks us through some recent hits. Also, some catalytic promise for wastewater management, and how choosing a language in which to think changes your decision making.

Plus, this week’s messages from you, and can poetry help science?

Presenter: Caroline Steel, with Chhavi Sachdev and Godfred Boafo Producer: Alex Mansfield, with Tom Bonnet and Margaret Sessa-Hawkins

Focus on Africa - Zimbabwe faces another major cholera outbreak

Zimbabweans are facing another major cholera outbreak. Just over a hundred people have died with around five thousand infected. We look at the many challenges faced by the country as it tries to deal with the current situation.

Also two young Tanzanians are still missing in Israel following the attack by the militant group Hamas almost three weeks ago. The father of one of them, 21 year old Joshua Loitu, has been speaking of his anguish in not knowing where his son is.

And why is Ghana at risk of losing state properties in London?

Focus on Africa - UAE firm to manage Tanzania’s main port

UAE firm DP World has signed a deal with Tanzania to manage two thirds of Dar-es-Salaam port for the next 30 years. The issue has provoked protests in Tanzania. The UAE is the fourth-largest investor in Africa, after China, Europe and the US. The opposition criticised the deal when details first emerged in July, saying it violated Tanzania's constitution.

Will the war between Israel and Hamas affect relations between Israel and its newest African ally Morocco?

And we meet the Kenyan designer from the slums who dressed Beyoncé and Bruno Mars.

Focus on Africa - UAE firm to manage Tanzania’s main port

UAE firm DP World has signed a deal with Tanzania to manage two thirds of Dar-es-Salaam port for the next 30 years. The issue has provoked protests in Tanzania. The UAE is the fourth-largest investor in Africa, after China, Europe and the US. The opposition criticised the deal when details first emerged in July, saying it violated Tanzania's constitution.

Will the war between Israel and Hamas affect relations between Israel and its newest African ally Morocco?

And we meet the Kenyan designer from the slums who dressed Beyoncé and Bruno Mars.

Good Bad Billionaire - Bernard Arnault: The wolf in cashmere

The rise and rise of the French entrepreneur who vies with Elon Musk for the title of richest person in the world. Bernard Arnault is the head of luxury brand conglomerate LVMH, a house of brands that owns Givenchy, Louis Vuitton, Moet, Hennessey, Christian Dior, Sephora, Tiffany & Co, Marc Jacobs, Fenty and some 70 other luxury labels.

Journalist Zing Tsjeng and BBC business editor Simon Jack trace Arnault's unstoppable ascent from scion of a northern French industrialist family, to Quebec and New York, then back to France where a ruthless takeover hoists him to the top. Is he good, bad, or just another billionaire?

The podcast that uncovers how the world's wealthiest people made their money and asks if they are a positive or negative force for the planet uncovers a story of boardroom dramas, hostile acquisitions and a fortune of over $200 billion.

We’d love to hear your feedback. Email goodbadbillionaire@bbc.com or drop us a text or WhatsApp to +1 (917) 686-1176.

To find out more about the show and read our privacy notice, visit www.bbcworldservice.com/goodbadbillionaire

Focus on Africa - Sierra Leone opposition ends parliament boycott

Sierra Leone’s APC opposition party has ended its boycott of parliament. The action had begun after June's presidential election, which the party decried as fraudulent. The All People’s Congress has now agreed to take up its seats in parliament.

We hear from a Nigerian pilgrim who escaped from Israel after the conflict there flared up earlier this month.

Plus Nigerian Afrobeats sensation Mr Eazi talks to us about his latest collaborative offer.