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Curious Cases

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

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  1. Tessellation Proliferation

    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 w

  2. Yawn Chorus

    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 an

  3. Making Waves

    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 Bria

  4. Identical(ish)

    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

  5. Trailer

    Hannah Fry and Dara Ó Briain return for a new series, and a whole lot of new problems to solve!

  6. Frosty Fractals

    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

  7. Mining for Gold (GOLD!)

    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 useful

  8. Phantom Pain

    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

  9. Tortoise Tomfoolery

    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

  10. Planetary Wobble

    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 wit

  11. Immortal Jellies

    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

  12. Mysteries from the Final Frontier

    Space: the final frontier, a deep dark realm full of questions and mysteries - many of which science can't yet satisfactorily answer. But that won't stop the Curious Cases team! In a special edition recorded in front of an audience at the B

  13. Beam Me Up, Scotty!

    Whether you’re stuck in traffic, waiting at the airport whilst delay after delay is announced or just really missing someone far away, a lot of us have probably wished we could teleport. But is this superpower the stuff of science fiction?

  14. Going Viral

    Cold and flu season is well and truly upon us, and whilst most of us are busy bemoaning the pesky viruses behind our sniffles and chesty coughs – one of our listeners has other ideas. Elizabeth wants to know whether we’re too hard on these

  15. We Didn't Start the Fire

    It has been said that you can't start a fire without a spark, but as Hannah and Dara are about to discover, that's not true! Welcome to the fiery phenomenon of spontaneous combustion, when something can ignite all on its own: no matches, no

  16. Just My Luck

    Are you a lucky person? Do the cards just fall well for you? Whether it's always finding a parking spot when you need one or chance encounters that change your life's trajectory for the better, some people seem to have more luck than others

  17. Good Vibrations?

    It turns out that the whole world wobbles. Everything has a natural frequency - the rate at which it moves when disturbed - be it a cup of tea, a building or a human organ. Even more incredibly, if an external force matches an object's natu

  18. To Crab, or Not to Crab?

    We can all picture a crab, but did you know that nature has reinvented those claw clicking, sideways scuttling crustaceans at least five separate times? In recent years the internet has run wild with the idea that crabs are the ultimate lif

  19. Trailer

    Hannah Fry and Dara Ó Briain return to Curious Cases HQ for a brand-new series. And curios, there’s a lot to unpack! Coming soon to BBC Sounds.

  20. Clever Crows

    The term 'bird brain' might suggest our feathered friends are stupid, but Hannah and Dara learn it's completely untrue. They play hide and seek with a raven called Bran, and hear how his behaviour changes depending on his mood. Corvid exper

  21. Memory Swap

    Could you ever trade memories with someone else? Fancy downloading the experience of landing on the moon, winning an Oscar or performing at Glastonbury? Listener Adam wants to know, and Hannah Fry and Dara Ó Briain are on the case. With exp

  22. Clowns in Spacetime

    Can you slow down time by hurtling through space at breakneck speed? Could listener Saskia’s friend - currently one year older - end up the same age as her if he went fast enough? It sounds bananas, but it’s all part of Einstein’s mind-warp

  23. Colossal Creatures

    How big can animals really get before they collapse under their own weight or run out of snacks? Could a 12-foot comedian survive their first punchline without snapping in half? Listener Andrew sends Hannah and Dara on a deep dive into the

  24. Nano Sharks

    Think of a shark and you'll probably conjure up images of Jaws, but it turns out their skin is also covered in tiny teeth. Hannah and Dara investigate the incredible properties of these so-called dermal denticles, to find out whether they c

  25. Chuckle, Snigger and LOL

    Why do we giggle, snort, and bust a gut laughing? Is it just humans being weird, does it serve some higher function or do other animals crack up too? And, okay, Dara is a comedian, but has he ever really made anyone laugh, like properly? Wi

  26. Don't Bite Me!

    Ever wondered why some people are mosquito magnets and other people barely get bitten? Hannah and Dara grapple with the question of whether these insects are evil or genius, discovering how they’re experts at finding blood when they’re hung

  27. Aches and Rains

    The team test the theory that you can use the weather to predict pain, separating science fact from fiction. It's an area with a huge amount of conflicting research, but one man who has investigated this is Professor Will Dixon, who explain

  28. Furnishing with Fungi

    From mouldy bread to athlete’s foot, fungi don’t exactly scream “home improvement.” But what if this misunderstood kingdom is the secret to the sustainable materials of the future? Listener Alexis - definitely not a gnome - wants to know ho

  29. Love Neurons

    What happens in your brain when Cupid’s arrow strikes? As a teenager, Alison developed an intense crush on George Harrison from the Beatles. But, she wants to know, why do we develop these feelings for pop stars we’ve never actually met? An

  30. Invisibility Quest

    Hannah and Dara tackle a disarmingly simple question: is anything in the universe truly invisible? After ruling out mysterious Nordic spirits and ‘Dara’s ire’, our curious duo start to track down the invisible waves all around them. Includi

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