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CrowdScience

by BBC World Service
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Today: #177 in Science on our combined chart.

If you like CrowdScience, try…

Ranking history · United States

Latest daily rankings: Oct 27. New rankings will appear after the next update.

Position on the Science combined chart over the last 14 days. Toggle platforms to compare their positions. Lower rank numbers are better.

Episode releases
#103#129#156#182#208Chart rankOct 15Oct 18Oct 21Oct 24Oct 27#177Episode released Oct 16: Why don't we lay eggs?Episode released Oct 23: How do insects hear?
View as table
DateCombined RankApple PodcastsCastbox
Oct 27#177#162—
Oct 26#143#128—
Oct 25#128#115#93
Oct 24#198#185—
Oct 23#194#182—
Oct 20#186#172—
Oct 19#132#114—
Oct 18#113#93#93
Oct 17—#187—
Oct 14—#194—

Latest episodes

  • How do insects hear?

    October 23, 2026 · 28 min

    CrowdScience listener Lauren from Belgium has near-complete hearing loss in one ear, because all the sensory hair cells in her inner ear have died. This got her thinking about how complicated the human ear is and whether there are other…

  • Why don't we lay eggs?

    October 16, 2026 · 29 min

    Some animals lay eggs, and their young hatch out of them. Other animals give birth to live young. But which strategy is best? That’s the question that’s been bothering CrowdScience listener Sameer in Canada. Is giving birth to live young…

  • Are we really in charge?

    October 9, 2026 · 26 min

    Have you ever found yourself doing something – perhaps getting a glass of water, eating a snack, or even sitting on the toilet – without remembering making the decision to do it? CrowdScience listener Mohammed certainly has. It’s left him…

  • How are shells made?

    October 2, 2026 · 26 min

    Where do shells come from? CrowdScience listener Tamsyn got in touch, a little embarrassed, confessing that she had managed to reach her twenties without realising that shells are made by living creatures. Suddenly, her curiosity ran wild…

  • Do plants know we're here?

    September 25, 2026 · 26 min

    CrowdScience listener Gurmeet in India wants to know if plants can sense that we're around. She started wondering about this at a wellness centre where she was encouraged to hug a tree. She enjoyed the experience, but what about the tree?…

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  • How many dead people are on the internet?

    September 18, 2026 · 34 min

    CrowdScience listener Devin in Canada has just had a baby. Worried that all the good email addresses might be taken by the time his child needs one, he has already set up an account. But it got him wondering: how many email addresses…

  • Can my veggie sausages save the world?

    September 11, 2026 · 26 min

    CrowdScience listener Lisa, who is from South Africa but now lives in the UK, has been a vegetarian for many years. Sometimes though, she still finds herself craving meats – like spaghetti bolognese or a burger. To satisfy these cravings…

  • Why do I love rollercoasters?

    September 4, 2026 · 29 min

    Your heart pounds, your chest tightens, your stomach drops and your legs feel weak and shaky. Your palms are sweating and a tingling rush spreads through your arms and fingertips as your brain is overwhelmed with feelings of tension and…

  • How do electric fish make electricity?

    September 2, 2026 · 26 min

    Some fish can deliver electric shocks with four times the voltage of the electricity in your plug sockets at home . Crowdscience listener Mouhammed in Cameroon was stunned by this, so he charged us with finding out how they do it…

  • Why am I warm blooded?

    August 21, 2026 · 26 min

    CrowdScience listener Matt wants to know why he's warm blooded. He started thinking about this when he was watching some ants during the recent heatwave in Europe and wondered why their blood didn't boil. What are the pros and cons of…

  • Why can't I concentrate?

    August 14, 2026 · 26 min

    Why is it hard to concentrate, and why does it feel like such hard work? The CrowdScience inbox is full of questions like that, so for this show we’re concentrating on concentration and focusing on how we focus. We’ll be answering…

  • Why is TB still killing people?

    August 7, 2026 · 26 min

    Tuberculosis kills more than a million people every year. It’s the world’s leading cause of death from a single infectious agent. This is despite the fact that we've had a cure for TB since the 1940s and a vaccine that’s over 100 years…

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About the show

We take your questions about life, Earth and the universe to researchers hunting for answers at the frontiers of knowledge.