The Infinite Monkey Cage

BBC Radio 4

Professor Brian Cox and Robin Ince host a witty, irreverent look at the world through scientists’ eyes. Joined by a panel of scientists, experts and celebrity science enthusiasts they investigate life, the universe and everything in between on The Infinite Monkey Cage from the BBC. From the smallest building blocks of life to the furthest stars, the curious monkeys pull apart the latest science to reveal fascinating and often bizarre insights into the world around us and what lies beyond. Can trees talk to each other? Can science help you commit the perfect murder? What might aliens look like and the burning question of our time, are strawberries alive or dead? Join them as each episode they put a different scientific topic under the microscope, from aliens, black holes and hedgehogs, to bacteria, poison and the Big Bang. With past guests including actors Dame Judi Dench and Sir Patrick Stewart, comedians Steve Martin and Conan O’Brien, astronaut Tim Peake, primatologist Jane Goodall and mathematician Hannah Fry, The Infinite Monkey Cage promises to make you laugh, enrich your knowledge and leave you with a deeper appreciation for the universe that we call home. Whether you’re a seasoned scientist or someone who nodded off in physics class, listen in to learn all about funny, fascinating and sometimes ridiculous topics – with the occasional monkey business.

Episodes

Introducing... Life Without

Hosted by Alan Davies, Life Without looks at what would happen to our planet if we removed one thing. Could pulling a single thread from our world really unravel the whole thing?

Mar 6

14 min

The North Pole Unwrapped - Russell Kane, Felicity Aston and Lloyd Peck

In this Christmas episode of The Infinite Monkey Cage, Brian Cox and Robin Ince head to the North Pole to explore the dazzling science behind the northern lights, the extreme adaptations that help animals - and even Santa Claus - survive the Arctic cold, and how the Earth’s magnetic field might just guide him home. Joining the monkeys are comedian Russell Kane, Arctic explorer Felicity Aston and Polar biologist Lloyd Peck, as they brave the chill to uncover the wonders of one of Earth’s most remote and magical frontiers.Series Producer: Mel Brown Researcher: Alex Rodway Executive Producer: Alexandra Feachem A BBC Studios Production

Dec 24, 2025

42 min

Monkey Business - Robin Dunbar, Dave Gorman and Jo Setchell

In perhaps the monkiest Infinite Monkey Cage episode there’s ever been, Brian Cox and Robin Ince attempt to uncover the secrets of love, lust and friendship in primates. Swinging by to offer a hand (or tail) are evolutionary psychologist Robin Dunbar, anthropologist Jo Setchell, and comedian Dave Gorman.Together the panel explores Dunbar’s number in monkeys – the idea that the number of friendships an individual can maintain correlates with brain size – with the very creator of the theory! They ask whether monkeys feel love the way we do, why some species remain strictly monogamous but others don’t, and what we could learn about ourselves through studying them. Robin goes bananas for bonobo fashion, while Dave couldn’t give a monkey’s about finding an aftershave to complement his natural smell.Series Producer: Mel Brown Researcher: Alex Rodway Executive Producer: Alexandra Feachem A BBC Studios Production

Dec 17, 2025

42 min

Head in the Clouds - Owain Wyn Evans, Gavin Pretor-Pinney, Amanda Maycock

Robin Ince and Brian Cox look up to the heavens as they try to ‘de-mistify’ the foggy science of clouds. They’re joined by Cloud Appreciation Society founder Gavin Pretor-Pinney, climate scientist Amanda Maycock, and former weather presenter and drummer Owain Wyn Evans, for a whirlwind tour of our too often-overlooked aerial realm.The panel explores how clouds form, why they take such extraordinary shapes, and how satellites and weather balloons help us keep track of them. They discover why low clouds cool the planet but high clouds warm it and why a cloud that weighs as much as a jumbo jet manages to stay up in the sky. From the physics of a crisp packet balancing on a cumulonimbus to the shimmering beauty of noctilucent clouds, tune in for this cirrus-ly fascinating episode.Series Producer: Mel Brown Researcher: Alex Rodway Executive Producer: Alexandra Feachem A BBC Studios Production

Dec 10, 2025

42 min

Fusion – Ria Lina, Yasmin Andrew and Howard Wilson

Robin Ince and Brian Cox get all fired up, overcome their natural repulsion and come together for this stellar episode on nuclear fusion. They’re joined by plasma physicist Yasmin Andrew, fusion scientist Howard Wilson and comedian Ria Lina to uncover the secrets of star-making here on our planet.Together the panel discovers how the sun fuses atoms to release energy and why misbehaving, jiggling plasma makes this tricky to recreate on Earth. They explore the competing technological approaches — from giant magnets to the world’s biggest lasers — and find out that the hottest place in the solar system is, in fact, in Oxfordshire. Finally, they ask whether fusion could really provide an unlimited source of clean energy, or whether the technology will forever be “just 20 years away”.Producer: Melanie Brown Executive Producer: Alexandra Feachem A BBC Studios Production

Dec 3, 2025

42 min

What’s the deal with eels? – Lucy Porter, David Righton and Caroline Durif

Fishing rods at the ready, Brian Cox and Robin Ince attempt to reel in a creature that has baffled scientists since Aristotle: the eel. Wriggling in to help them uncover the mysteries of one of nature’s slimiest subjects are marine scientists David Righton and Caroline Durif, and comedian Lucy Porter.How do eels navigate such vast distances so deep under water? Why has no one ever seen them reproduce? And WHY would anyone eat them jellied with pie and mash?! The panel discovers that Spanish eels are always late and that eels from all different countries are thought to meet up somewhere in the Atlantic Ocean for a huge annual orgy.Producer: Melanie Brown Assistant Producer: Olivia Jani Executive Producer: Alexandra Feachem A BBC Studios Production

Nov 26, 2025

42 min

What’s the time? - Marcus Brigstocke, Leon Lobo, Louise Devoy

Robin Ince and Brian Cox wind up at the Royal Observatory in Greenwich – arguably the centre of time – to uncoil the mysteries of what time is and how on Earth (…and on moon) we keep track of it. Taking the time to join them are comedian Marcus Brigstocke, curator of the Royal Observatory Louise Devoy, and Head of the National Timing Centre Leon Lobo.From ancient Egyptian knuckle counting to sun dials, quartz oscillators and atomic clocks, the panel turns back time to discover how we measured and kept it throughout history. Together, they dial into why Greenwich has become such an important place for time and how time is synchronised and sold across the globe. They explore the flaws and future of accurate astronomical and atomic timekeeping, and Marcus blames the ‘leap second’ for his fry-up failures.Producer: Olivia Jani Series Producer: Melanie Brown Executive Producer: Alexandra Feachem A BBC Studios Production

Nov 19, 2025

42 min

Mind-reading Computers – Phil Wang, Anne Vanhoestenberghe and Luke Bashford

For once, Brian Cox and Robin Ince are on the same wavelength – with thinking caps firmly on, they plug into the science of brain-computer interfaces. Helping them decode the tech are neuroscientist Luke Bashford, biomedical engineer Anne Vanhoestenberghe, and comedian Phil Wang.Together the panel switches on to the possibilities of using implanted and wearable devices to restore movement, speech, sight… or even to decode thoughts themselves. From the ethics of cognitive enhancement to the future of mind-reading and immersive gaming, strap in for this electrifyingly thought-provoking episode.Producer: Melanie Brown Executive Producer: Alexandra Feachem A BBC Studios Production

Nov 12, 2025

42 min

New series starts soon!

Brian Cox and Robin Ince preview the new series of The Infinite Monkey Cage, which includes a fascinating episode about eels!New episodes will be released weekly, wherever you get your podcasts. If you’re in the UK, you can listen to episodes a week early, first on BBC Sounds.

Nov 10, 2025

1 min

Illuminating Light - Jess Wade, Russell Foster and Bridget Christie

What is light? How has it shaped our understanding of the universe, our biology, and even our culture? In this illuminating episode Brian Cox and Robin Ince shine a spotlight on the fascinating science and history of light. From sun and circadian rhythms to the dazzling complexity of quantum, they explore how humans have understood and been influenced by light across time. Joining them to shed light on the subject are physicist Dr Jess Wade, Neuroscientist Professor Russell Foster and comedian Bridget Christie. Together, they trace the story of light from early scientific theories to the cutting-edge research of today. Expect tales of light emitting eyes, the mystery of wave-particle duality and why Bridget thinks that if we had understood light better, we’d never have believed in ghosts!Series Producer: Melanie Brown Assistant Producer: Olivia Jani Executive Producer: Alexandra FeachemBBC Studios Audio Production

Aug 20, 2025

42 min