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BBC World Service

Discovery

Welcome to a world where medicine meets politics: a space that brings together scientific research, government wrangling, public push-back and healthcare conspiracies…

Dr Anthony Fauci was the Director of America’s National Institute of Allergy and Infectious Diseases for nearly four decades, during which time he not only helped study, treat and prevent viruses such as HIV/AIDS and Covid-19; he also advised seven US Presidents, from Ronald Regan through to Joe Biden.

Along the way, Tony Fauci's picked up a public profile and taken a fair amount of flack; not least because of his complicated relationship with President Donald Trump. But he's also made great strides in medical research and policy, from working with activists who initially challenged him on the government response to HIV/AIDS - to spearheading the USA's PEPFAR project to share vital medication with developing nations.

In a candid conversation with Professor Jim Al-Khalili, Tony discusses his childhood in Brooklyn, the dark early days of the HIV/AIDS epidemic and lessons from the Covid-19.

Presented by Jim Al-Khalili
Produced for BBC Studios by Lucy Taylor
Reversion for World Service by Minnie Harrop

The Life Scientific: Anthony Fauci

Investigating an insect known for eating its prey alive – including, at times, its own species - the praying mantis! With bulging eyes and a triangular head, this predator uses it specially adapted front legs to trap its prey. 

Able to predate animals of a size much larger than themselves, including birds, lizards and even fish, presenter Adam Hart hears about their cultural significance to human populations all around the world, as well as addressing their reputation for sexual cannibalism. We also hear about their biomaterial qualities and potential importance in agriculture, and also look into a parasitic relationship the praying mantis has with a worm in South America which has given them the name ‘the mother of snakes’.

Contributors:

Dr. Julio Rivera, entomologist and researcher at the Université de Montréal in Canada and research associate at the Montréal Insectarium.

Dr. Bianca Greyvenstein, postdoctoral fellow at North-West University in Potchefstroom and an expert in the praying mantises of South Africa.

Presenter: Professor Adam Hart
Producer: Jonathan Blackwell

(Photo: Praying Mantis, Credit: Paul Starosta via Getty Images)

Tooth and Claw: Praying Mantises

Investigating an elusive big cat known for its excellent tree climbing abilities - the leopard! This master of camouflage is found from the south of Africa to the far east of Asia – a spotted predator that stalks and ambushes its prey!

Presenter Adam Hart will investigate their relationships with tigers and lions, as well as learning about a recent discovery that leopards each have their own unique roar. He’ll also discuss the future of the Arabian leopard and the potential for a reintroduction to Saudi Arabia, and find out about the role of synthetic fur capes known as ‘Heritage Furs’ in leopard conservation. 

Contributors:

Dr. Gareth Mann, who is based in South Africa, is Leopard Program Director for Panthera, the global wild cat conservation organisation.

Dr. Charlotte Searle, postdoctoral researcher and conservationist based in Tanzania, who is associated with the Wildlife Conservation Research Unit at the University of Oxford.

Presenter: Professor Adam Hart
Producer: Jonathan Blackwell

Photo: Leopard in tree
Credit: Valentin Wolf via Getty Images

Tooth and Claw: Leopards

On this episode of The Evidence, Claudia Hammond discusses all things hydration with a panel of experts. Where do our hydration guidelines come from? How do we determine the perfect amount of water we should drink? What are the issues with water access that people and populations face aroud the globe? And how will climate change affect the amount of water we need, and our access to it. In front of a live audience at the Wellcome Collection in London, Claudia discusses these questions and more with Neil Turner, nephrologist and professor emeritus at Edinburhg University, Yael Velleman, Director of Policy and Innovation at Unlimit Health, working at the intersection of water access, sanitation, and disease; and Anthony Acciavatti, an associate professor at Yale Architecture School and creator of the exhibtion Groundwater Earth: The World Before and After The Tubewell.

The Thirst for Water

Named after a beast from Greek mythology, the harpy eagle is widely considered to be the most powerful bird of prey due to its strong legs and huge talons. With a crown of feathers atop its head, and known for eating monkeys and sloths, this regal-looking raptor dominates the rainforest canopies across much of South and Central America. 

Presenter Adam Hart looks into the folklore and cultural importance of these imposing birds, as well as finding out why these apex predators of the treetops are having to increasingly search for ground-dwelling prey such as armadillos. He also hears how harpy eagle researchers were the pioneers for biological applications of GPS in order to study and track these animals in the dense rainforest.

Contributors:

Dr. Helena Aguiar-Silva, biologist and associate research scientist at the National Institute for Amazonian Research and a member of Projeto Harpia Brasil.

Dr. Eduardo Alvarez founder of a non-profit organisation called EarthMatters.org, to concentrate on the study and conservation of harpy eagles and to preserve their rainforest habitat.

Presenter: Professor Adam Hart
Producer: Jonathan Blackwell

Image: Harpy eagle and nest with chick
Credit: João Marcos Rosa

Tooth and Claw: Harpy Eagles

Investigating the black-and-white apex predator of the sea – the killer whale! Able to predate even great white sharks, this marine mammal is the largest member of the dolphin family. From tropical seas, to the Arctic and Antarctic, killer whales (or orcas) are found across the world. Living in family groups and often led by a post-menopausal matriarch, killer whales have passed on their hunting methods, which vary depending on which prey they specialise in hunting, through the generations.

Presenter Adam Hart finds out about the killer whales incredible social behaviours (such as wearing salmon as hats) and hears how a dog is helping killer whale researchers access a gold mine of information about this predator. He also hears what challenges killer whale populations are facing and why killer whales may be attacking boats off the coast of the Iberian peninsula.

Contributors:

Dr. Leigh Hickmott, whale biologist and conservationist, who is an expert on Pack Ice killer whales, and whose research uses them as indicators to assess human disturbance of marine habitats.

Dr. Deborah Giles, who is an expert on Southern Resident killer whales, based with the SeaDoc Society, a program of the Karen C. Drayer Wildlife Health Center at the UC Davis School of Veterinary Medicine.

Presenter: Professor Adam Hart
Producer: Jonathan Blackwell

(Photo: Killer Whales, Credit: Serge MELESAN via Getty Images)

Tooth and Claw: Killer Whales

What's it like living underwater for two weeks? What's the trickiest part of training to be an astronaut? What are the most memorable sights you see from space? Several extreme questions, all of which can be answered by one man: Major Tim Peake. 

After a childhood packed with outdoor adventures, via the Cub Scouts and school Cadet Force, Tim joined the British Army Air Corps and became a military flying instructor then a test pilot; before eventually being selected as a European Space Agency (ESA) astronaut. In 2015, Tim became the first British ESA astronaut to visit the International Space Station. 

Over the course of a six-month mission, he took part in more than 250 scientific experiments and worked with more than two million schoolchildren across Europe. 

In a special New Year’s episode recorded in front of an audience at London’s Royal Society, Professor Jim Al-Khalili talks to Tim about his lifelong passion for adventure, the thrill of flight and why scientific experiments in space are so important. 

Presented by Jim Al-Khalili 
Produced by Lucy Taylor

The Life Scientific - Tim Peake

What effect will warming temperatures have on health? One place to look for answers is Bulgaria. In the summer of 2023, Bulgaria experienced numerous heatwaves, leading to the country experiencing one of the highest rates of heat mortality in Europe. But how are these numbers calculated? How exactly does heat affect us? Who is most likely to suffer from ill health due to heat? And how can we protect ourselves in an increasingly warming world? Along with a panel of experts, Claudia Hammond will explore these questions and more with a live audience at the Sofia Science Festival in Bulgaria. Are we prepared for how rising temperatures will affect our health? This programme aims to find out.

How does heat affect our health?

From growing up in a progressive Denmark to studying mathematics at a gender-segregated Cambridge University, Inge Lehmann had to power through the shock of cultural change to pursue her love of mathematics. Whilst managing several seismological stations, Inge notices the peculiar readings in the data she was collecting. Was the Earth’s composition actually different to what the experts had thought?

Dr Julia Ravey and Dr Ella Hubber tell the story of Danish seismologist Inge Lehmann who used earthquakes to uncover the truth about the composition of the Earth’s inner core.

Presenters: Ella Hubber and Julia Ravey 
Guest Speakers: Dr Lif Lund Jacobsen and Dr Trine Dahl-Jensen 
Producers: Ella Hubber and Julia Ravey 
Assistant producers: Sophie Ormiston, Anna Charalambou and Josie Hardy 
Sound designer: Ella Roberts 
Production co-ordinator: Ishmael Soriano 
Editor: Holly Squire 

(Photo: Inge Lehmann Credit: Neuhaus, Even (6.2.1863-20.4.1946) /Royal Danish Library)

Unstoppable: Inge Lehmann

Dr Julia Ravey and Dr Ella Hubber are both scientists, but it turns out there’s a lot they don’t know about the women that came before them. In Unstoppable, Julia and Ella tell each other the hidden, world-shaping stories of the scientists, engineers and innovators that they wish they’d known about when they were starting out in science. This week, the story of a woman who gained her education by herding sheep during her childhood to becoming one of Africa’s most prominent scientists.

Born under Apartheid in South Africa, Tebello Nyokong and her family uprooted their lives to escape the unequal education system enforced upon Black South Africans. After herding sheep proved she could do anything a boy could do, Tebello ended up studying science and found a love for chemistry. In the face of limited opportunities, she once again uprooted her life and took her studies oversees, but this was when she was introduced to something huge: a new, ground-breaking cancer treatment. Now Tebello is using nanotechnology to get this therapy off the ground, all while she fights to make Africa a science superpower.

Presenters: Ella Hubber and Julia Ravey 
Guest Speaker: Professor Tebello Nyokong 
Producers: Ella Hubber and Julia Ravey 
Assistant producers: Sophie Ormiston, Anna Charalambou and Josie Hardy 
Sound Designer: Ella Roberts 
Production Coordinator: Ishmael Soriano 
Editor: Holly Squire 

(Image: Professor Tebello Nyokong. Credit: Professor Tebello Nyokong)

Unstoppable: Tebello Nyokong

The second episode in our four-part series Saving the Ocean in which we look at the impact of climate change, overfishing and pollution on ocean environments, and examine the scientific solutions to some of those issues. Presented by Joel Werner from the Australian broadcaster ABC Radio National, the series focuses on the improvements both for marine life and the people who depend on oceans for their livelihoods.

In this second programme Joel looks at plans to help conserve sharks in the waters around remote Pacific islands. A shark fin export trade to Asia has provided a lucrative but ultimately unsustainable income for the islanders. And he visits New Zealand, where a high-tech solution has been designed to help sustainably harvest a different valuable export commodity - marine snails. A high demand from Asia for this delicacy has endangered the snails. Joel hears how digital technology is being used to track them to ensure there are enough left to breed. He also sees what tracking technology is revealing about how seabirds are affected by commercial fishing practices.

(Image: Paua fishermen examine their catch. BBC copyright)

Saving the Oceans - Part Two

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