Animals are essential in maintaining ecosystem balance, but in some cases they can have the opposite effect. In the coastal city of Mombasa, Kenya, authorities are looking to cull 1 million Indian house crows. Conservationists say they are becoming a nuisance and have significantly reduced the number of small indigenous birds in the region. So how will they be dealt with? The BBC’s Dorcas Wangira, an Africa health correspondent, explains.

Pest are an issue in New York too. There’s estimated to be 3 million rats scurrying around the Big Apple and the city’s mayor has made it his mission to deal with the rocketing number of rodents by hiring a ‘rat tsar’. Sam Cabral, a BBC reporter in New York, tells us more.

Finally, we hear from Predator Free Wellington, an organisation in New Zealand, which is hoping to completely remove predators (like rats and possums) by 2050.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Alex Rhodes Producers: Mora Morrison and Baldeep Chahal Editor: Emily Horler

Leg-lengthening surgery was once reserved for people with a serious injury or physical deformity. But now more people are undergoing the procedure simply because they want to be taller.

BBC journalist Tom Brada explains what the operation entails, the risks it carries, and the costs that patients incur. We also hear from Daniel, a man who underwent the procedure. He describes why he wanted to be taller, what his surgery and recovery were like, and whether it was worth it.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Hannah Gelbart Producers: Baldeep Chahal and William Lee Adams Editor: Julia Ross-Roy

Thousands of Venezuelans have been protesting after President Nicolás Maduro claimed victory in the country's disputed election. The opposition says the results were fraudulent.

There are reports of at least 11 deaths in protest-related violence, with lots more people injured.

Our South America correspondent, Ione Wells, explains why the results are disputed and what protesters in Caracas have been saying.

BBC Mundo’s Jorge Perez gives us the background on Venezuela, including who Hugo Chávez was and why the country is in such economic turmoil, despite having the biggest proven oil reserves in the world.

Also, young Venezuelans tell us about their hopes for their futures.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Hannah Gelbart Producers: Emily Horler and Shiler Mahmoudi Editor: Julia Ross-Roy

Dearest gentle listener: It’s our first birthday! To celebrate one year of our What in the World podcast, we asked you what burning questions you had — and we turned to the BBC’s global network of experts to get the answers. In this episode, you’ll hear…

Digital health editor Michelle Roberts on how vaccines train the body’s immune system.

Seoul correspondent Jean Mackenzie on what tourists in North Korea can actually do.

Correspondent Samira Hussain on how the electoral college decides the U.S. presidential election.

Climate and environment researcher Mark Poynting on the role of hydrogen in the green energy transition.

Plus Mora from the What in the World answers Alex’s question, “How do fringes happen?” We said no question was too stupid.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Hannah Gelbart Producers: Alex Rhodes and William Lee Adams Editor: Julia Ross-Roy

Afrobeats originated in Nigeria and Ghana, starting to get popular in the 2010s. It’s generally seen as a blend of West African music styles with Western pop and rap.

Artists like Wizkid, Burna Boy, Tiwa Savage, Rema, and Davido have gone global. TikTok and Youtube have played a big part in the genre’s popularity, so have collabs with people like Beyonce and Drake.

But some are turning away from Afrobeats. Burna Boy has said ‘there’s no substance’ to the genre, even though it’s ‘an amazing time’. Wizkid has said he doesn’t want to be labelled as ‘just Afrobeats’ and that he makes more genres of music. And Davido has said he prefers to be called Afrofusion. So what next?

Our BBC pal Faith Oshoko takes us through what the music scene is like in Lagos and and some of the history behind Afrobeats.

We also chat to Candy Bleakz, a rapper in Nigeria. She’s made Afrobeats tracks and is the only woman in the Street Pop genre. We sit down and chat through her inspirations and hopes for her music career and why people in Lagos make such good music.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Hannah Gelbart Producer: Alex Rhodes and Emily Horler Editor: Verity Wilde

South Sudan — the world’s youngest nation — endured the longest civil war in Africa. Now, in their debut Olympic Games, its men’s basketball team is helping the country forge a new identity.

BBC Africa Sport journalist Kelvin Kimathi explains South Sudan’s meteoric rise in basketball -- and how the national team almost beat the United States in an exhibition match a week before the Olympics.

Luol Deng, a former NBA and Chicago Bulls star, is widely credited with revolutionising basketball in the country. He tells us about his work leading the South Sudan Basketball Federation, the potential he saw in his countrymen, and how he funded basketball programmes to create a pipeline of talent.

We also hear from Olympic team member Khaman Maluach, who grew up as a refugee in neighbouring Uganda. The 17-year-old explains how a chance encounter led him to basketball. Finally, basketball fans from South Sudan tell us about the pride they feel watching their player succeed internationally.

During the Opening Ceremony in Paris, which featured performances from Lady Gaga and Celine Dion, international commentators cited the men’s basketball team as South Sudan’s big hope in the Games. In their opening match, South Sudan defeated Puerto Rico 90-79. But their debut appearance wasn’t without hiccups. Players said they were "disrespected" after organisers played the wrong national anthem at the start of their match.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: William Lee Adams Producer: Mora Morrison Editor: Verity Wilde

The Philippines is racing to contain the oil from a tanker that sank on Thursday in the midst of heavy rains from Typhoon Gaemi. It was carrying 1.5 million litres of oil, and the spread of it could cause an environmental catastrophe. We hear the latest on the coast guard operation from Jhesset Enano, a journalist based in Manila.

This incident has reminded people about the devastating impacts of previous major oil spills like BP’s Deepwater Horizon in 2012 and when MV Wakashio ran aground on a coral reef near Mauritius in 2020. We unpack how oil can be cleaned up and what these spills do to marine life with BBC climate and science reporter Georgina Rannard.

We also hear from Vikash Tatayah, conservation director at Mauritian Wildlife Foundation, about how Mauritius’ biodiversity was affected by the country’s worst environmental disaster. Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: William Lee Adams Producers: Julia Ross-Roy and Benita Barden Editor: Verity Wilde

The Olympics have a huge impact, in many ways. Whether that’s tears, screaming at the TV, or inspiring you to take up rhythmic gymnastics. There’s another impact though, that affects us all, and that’s on the environment and climate. The 2016 Rio Games had a total estimated footprint of 3.6m tonnes of carbon.

Ahead of Paris 2024, we chat to BBC climate and sport reporter David Lockwood and Jordan Dunbar, co-host of BBC podcast The Climate Question. They explain how organisers are trying to cut their emissions in half this year, compared to previous Olympics and discuss what a future, greener Olympics could look like.

And almost 16,000km away in Tahiti, French Polynesia, the small community of Teahupo’o will host the surfing event on their legendary waves. But it’s not all smooth sailing, as the Olympic committee faced protests against the building of a massive new judging tower in the reef. Local photographer Tim McKenna explains what the locals think now, and how they’re preparing.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Alex Rhodes Producer: Imogen James and Julia Ross-Roy Editor: Verity Wilde

Check out some of our other episodes about the Olympics:

- How do I become an Olympian? https://www.bbc.co.uk/programmes/w3ct67qg - Breakdancing at the Paris Olympics: What to expect https://www.bbc.co.uk/programmes/w3ct6807 - How do African athletes train for the Winter Olympics without ice? https://www.bbc.co.uk/programmes/w3ct67hv

White cast, nostalgic smell, never quite rubbed in enough. Yep, that’s sunscreen. It can be the stuff of nightmares when sand is involved. But recently, some TikTok influencers - and even celebrities - are telling their followers that it’s dangerous. They allege that chemicals seep into your skin, and cause harm, even cancer.

But science says no. In this episode, biomedical scientist Judey Pretorius explains how UV rays cause cancer, and that you need chemicals, good ones, to help save your skin from sun damage. She goes through what actually happens when you use sun cream and the benefits.

And what about for darker skin tones? Dr Shadi Kourosh, professor of dermatology at Harvard Medical School, and expert in multi-ethnic skin, tells us how sunscreen is still important even if you have darker skin.

So where did this trend come from - if it’s a myth? BBC disinformation reporter Jacqui Wakefield speaks about reports, famous people and even trad wives. Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Alex Rhodes Producer: Imogen James, Benita Barden and Emily Horler Editor: Verity Wilde

Last year, Afghanistan attracted 7,000 tourists from abroad. That’s despite many governments warning citizens not to visit the country because it’s ruled by the Taliban, an extreme Islamic group. Since overthrowing Afghanistan’s government in 2021, the Taliban have banned women from attending university and working in all non-governmental organisations. They’ve also ordered the closure of beauty salons across the country.

So why are tourists choosing to go there and what are the risks? The BBC’s Flora Drury joined us to explain.

Plus, we hear from Sascha Heeney, who’s actually travelled to Afghanistan both as a tourist and a tour guide, and Zarghuna Kargar, an Afghan journalist with the BBC.

Rising tourism is good news for tour guides in the country, like Rohullah, who told us about the rules that must be followed and what makes the country appealing to visitors.

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Alex Rhodes Producers: Baldeep Chahal and William Lee Adams Editor: Verity Wilde

After vowing that nothing could stop him from running for re-election, US President Joe Biden has dropped out of the 2024 presidential race and endorsed Vice President Kamala Harris to take over.

He didn’t just fall out of a coconut tree, he exists in the context of what came before - so we explain how he got here.

He made the announcement via a statement on social media, in which he said his decision was "in the best interest of my party and the country". It comes after weeks of intense suggestions from fellow democrats, voters and even George Clooney to drop out following a dodgy debate performance against Donald Trump.

He’s still president until January, when the winner of the 2024 election will take office. But in the meantime, what happens? How do we get there? And why on earth are so many people talking about coconuts? We explain what’s likely to unfold over the next four months.

Instagram: @bbcwhatintheworld Email: [email protected] WhatsApp: +44 0330 12 33 22 6 Presenter: Alex Rhodes Producers: Emily Horler, Benita Barden and Kevyah Cardoso Editors: Verity Wilde

A lot of us dream about becoming a professional athlete and the ultimate athletes in sport are at the Olympic Games. But what does it take? The Olympics officially start on 26th July in Paris, France. 10,500 athletes from over 200 countries will take part in 32 sports including athletics, swimming, and gymnastics, as well as BMX, surfing and climbing.

Kishmala Talat (22), a shooter from Pakistan, and Zenéy Geldenhuys (24), a South African hurdler, are both competing at their first Olympics this year. They talk about how it feels to represent their country and what it takes to become an Olympian.

And two other Olympics athletes Tanisha Crasto (21), who plays badminton for India, and Rebecca Meder (21), a South African swimmer, answer some of your questions - like what have you sacrificed and what’s your morning routine?

Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: [email protected] Presenter: Adam Chowdhury Producers: Julia Ross-Roy and William Lee Adams Editor: Verity Wilde