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Curious Cases

Curious Cases

BBC Radio 4 165 episodes Nov 6, 2026

Hannah Fry and Dara Ó Briain tackle listeners' conundrums with the power of science!

Episodes

Too Cute
Too Cute Nov 6, 2026 28:13 Why do we find the young of other species cute? Finding baby humans adorable makes evolutionary sense, ensuring that we care for them properly. But what about babies of other species? Hannah and Dara go down a fluffy rabbithole of cuteness: pondering the science behind things that make us go 'ahhhh'; exploring the phenomenon of 'cute aggression'; and discovering there can be such a thing as cutene
Tessellation Proliferation
Tessellation Proliferation Oct 30, 2026 28:15 We may think of tessellation as being about how to tile a flat plane but this week we reveal how repeating patterns actually occur all over the place, and can even help us solve some of nature's most complex problems.The presenters start with the simple principal that for shapes to fill a space without leaving any gaps or overlapping, the angles in the corners have to add up to exactly 360° - whic
Yawn Chorus
Yawn Chorus Oct 23, 2026 28:26 We often associate yawning with being tired or bored - but this week's episode explores whether it could be a clever way to cool down our brains?Hannah and Dara discover humans aren't the only species that yawn. From cats to chimpanzees and even fish, plenty of other vertebrates engage in this ancient behaviour which scientists believe evolved hundreds of millions of years ago. And it doesn't alwa
Making Waves
Making Waves Oct 16, 2026 28:20 What happens when you give water a really good shake? You might expect splashing, spilling and general aquatic chaos - but under exactly the right conditions, something much stranger can happen... In this episode, Hannah Fry and Dara Ó Briain dive into the world of 'Faraday waves': amazing geometric patterns that, in certain circumstances, will appear on the surface of a vibrating liquid. They dis
Identical(ish)
Identical(ish) Oct 9, 2026 28:29 Ever wondered how close nature can get to making a human clone? And what happens if identical twin brothers marry identical twin sisters and have babies - how similar are they? Our listener Chris has been pondering this very issue, and his question takes Hannah and Dara down another scientific rabbit hole.Our intrepid duo consider how one fertilised egg can somehow become two babies, why those bab
Trailer
Trailer Sep 29, 2026 0:49 Hannah Fry and Dara Ó Briain return for a new series, and a whole lot of new problems to solve!
Frosty Fractals
Frosty Fractals Jan 2, 2026 29:10 One winter morning, listener Jane opened her curtains to find her car roof covered in breathtaking, fern-like frost so intricate it looked like a William Morris print. But how does something as ordinary as ice create patterns so beautifully complex?Hannah and Dara explore this crunchy, slippery, delicately patterned branch of chemistry to uncover the rules and mysteries that govern the extra-ordin
Mining for Gold (GOLD!)
Mining for Gold (GOLD!) Dec 31, 2025 27:51 From pharaohs' tombs in Ancient Egypt and medieval currency, to priceless royal jewellery and Spandau Ballet songs - gold has been prized for millennia. But it's only really in the last century or so that we've started uncovering its usefulness in less decorative applications.Today, gold is used in masses of electricals; it's also revolutionised part of the manufacturing sector by stopping a dang
Phantom Pain
Phantom Pain Dec 19, 2025 28:29 What exactly is 'phantom pain' and how does it work? Hannah and Dara investigate a medical phenomenon that's been known about for centuries but is often misunderstood; and involves masses of unanswered questions.The condition 'phantom pain' is when someone gets a sensation of pain that feels like it's coming from a part of their body that's no longer there - so that could be an amputated limb, or
Tortoise Tomfoolery
Tortoise Tomfoolery Dec 12, 2025 28:44 Tortoises have traditionally been the poster child for slowness. These ancient, armoured reptiles are solitary, territorial and all-too-often dismissed as dull.In fact, tortoises have distinct personalities. They have changeable moods, can learn simple tasks, remember certain useful information for years and even recognise familiar people. But can they play?Hot on the trail of tortoise tomfoolery,
Planetary Wobble
Planetary Wobble Dec 5, 2025 28:28 Could you survive an eternal winter? Or is endless summer sun a more appealing prospect? Lots of us are grateful for the seasonal changes that shape the world around us, but this week Hannah and Dara are asking what life would look like without the axial tilt that brings each hemisphere closer and further away from the sun as the seasons change each year. Listener Andrew from Melbourne wants to kn
Immortal Jellies
Immortal Jellies Nov 28, 2025 28:52 Could immortality ever be possible for humans? It sounds like something from a sci-fi movie, but floating in oceans around the world is a tiny, transparent jellyfish that could hold the answer...Turritopsis dohrnii, known as 'the immortal jellyfish', isn’t immortal in the true sense of word - it can die - but it has a nifty way of avoiding that fate. In times of stress, this miniscule jelly can bi

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