BBC World Service - CrowdScience - Downloads Homepage Accessibility links * Skip to content * Accessibility Help Close menu BBC World Service CrowdScience * Home * Episodes * Clips * Podcast * Contact CrowdScience * Join us on Facebook Main content CrowdScience Podcast We take your questions about life, Earth and the universe to researchers hunting for answers at the frontiers of knowledge. Updated: weekly Episodes available: indefinitely Subscribe in Sounds RSS Episodes to download * Why do I love rollercoasters? Friday Rollercoasters feel dangerous. So why do people love them? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * How do electric fish make electricity? Fri 28 Aug 2026 Some fish generate electric shocks that can stun a human. How do they do it? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why am I warm blooded? Fri 21 Aug 2026 CrowdScience listener Matt wants to know is it better to be warm blooded or cold blooded? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why can't I concentrate? Fri 14 Aug 2026 Questions about attention and multitasking, answered by psychologists and neuroscientists Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why is TB still killing people? Fri 7 Aug 2026 Tuberculosis kills over a million people every year, despite a vaccine and a cure. Why? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Will I get hit by a meteor? Fri 31 Jul 2026 How dangerous are meteors? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Is anything truly random? Fri 24 Jul 2026 An award-winning show about bathroom tiles and the fundamental mysteries of the universe. Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Are there diseases in space? Fri 17 Jul 2026 Space missions are looking for life, but could that life be dangerous? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * What are these strange rocks? Fri 10 Jul 2026 There are some strange rocks on a beach in Indonesia. What are they? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * How did plants evolve to attract insects? Fri 3 Jul 2026 The ingenious, gruesome and fascinating ways plants have adapted to survive. Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Do animals care about the past? Fri 26 Jun 2026 The past matters to humans, but does it matter to animals? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * How does Bluetooth work? Fri 19 Jun 2026 Bluetooth lets us share files and listen to music without wires. But how does it work? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why does paper fold so well? Fri 12 Jun 2026 Origami is the art of folding paper, but what makes paper remember its creases? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Do plants have personalities? Fri 5 Jun 2026 Can brainless plants really think for themselves? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * What's the deal with tongues? Fri 29 May 2026 Why do different animals have such different tongues? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why am I an introvert? Fri 22 May 2026 What is an introvert? And is CrowdScience listener Daniel one? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why do we itch? Fri 15 May 2026 Why do we feel itchy? We explore the science behind itching and scratching. Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * How come sea levels are rising faster in some places than others? Fri 8 May 2026 Sea levels are rising due to climate change, but why are some places noticing it more? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why can't I recognise faces? Fri 1 May 2026 Face blindness affects 1 in 50 people. But what’s the cause? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Do animals hold funerals? Fri 24 Apr 2026 Do animals mourn the dead? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why does salt taste so good? Fri 17 Apr 2026 Why do people crave salty foods? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * When will the next super-volcano erupt? Fri 10 Apr 2026 If a supervolcano erupts, will we get a warning? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Will rabbits become super predators? Fri 3 Apr 2026 How do invasive species evolve? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Could AI present CrowdScience? Fri 27 Mar 2026 AI is predicted to replace some human jobs – could it host this show? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Can I unlock my car using my head? Fri 20 Mar 2026 Wireless keys work better if you press them against your skull. But why? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Can I really manifest the future? Fri 13 Mar 2026 Can manifesting make your dreams come true? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * What keeps the universe in balance? Fri 6 Mar 2026 What keeps the stars burning? And is the universe in balance? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * How can we save the Great Barrier Reef? Fri 27 Feb 2026 Coral is under threat from climate change – can these Australian scientists save it? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Why don't more animals have opposable thumbs? Fri 20 Feb 2026 Thumbs are incredibly useful to humans, so why didn’t they evolve in more species? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Can we cancel light waves? Fri 13 Feb 2026 Noise cancelling headphones remove unwanted sound. Can we do the same with light? Download Choose your file * Higher quality (128kbps) * Lower quality (64kbps) * Previous * 1 * 2 * 3 * 4 * 5 * … * 17 * Next This podcast belongs to * CrowdScience Other podcasts you may like See all podcasts Related Content Similar programmes By genre: * Factual > Science & Nature * Factual > Science & Nature > Science & Technology By format: * Documentaries * Online schedule * Help & FAQs * Contact us * News in more than 40 languages * Terms of Use * About the BBC * Privacy Policy * Privacy Policy * Cookies * Cookies * Accessibility Help * Parental Guidance * Contact the BBC * Make an editorial complaint * Careers * BBC emails for you * Advertise with us Copyright (c) 2026 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking.