Science sleuths Dr Adam Rutherford and Dr Hannah Fry investigate everyday mysteries.

In this irreverent and illuminating popular science show, award-winning geneticist Dr Adam Rutherford teams up with mathematics guru Dr Hannah Fry to solve puzzling conundrums sent in by listeners. For the past five years, they've been scrutinising a cornucopia of cases using the power of science - from why people shout on their mobile phones to how much the bacteria in our body weighs. 

In these 50 episodes, they tackle topics including what makes gingers ginger, how to make the perfect cup of tea, whether being left-handed affects your brain and why we get static shocks. Plus, they explain why the Earth spins, what's inside a black hole, why tunes get stuck in our heads and how bats echolocate - as well as solving the enigma of why sex exists and discovering whether science can help you win the lottery. 

So whether you're curious about déjà vu, wondering if we could shoot lasers to the moon or simply desperate to identify the tiniest dinosaur, Fry and Rutherford have the answers you need. Helping them to find the solutions are a host of fellow scientists and special guests including Professors Alice Roberts, Marcus du Sautoy and Jim Al-Khalili, Jay Rayner, Shaun Keaveney, Rory Cellan-Jones and Duncan Wisbey. 

Presented by Drs Adam Rutherford and Hannah Fry

Producer: Michelle Martin

Includes archive from Outlook on BBC World Service, broadcast August 2016; 'Horizon: Playing God', first broadcast January 2012; and The One Show, BBC TV

Series 1 featuring: Kate Williams, Jonathan Rees, Neal Harwood, Jane Wakefield. Masdar City man, Nick Zakarov, Greg Jenner, Dr Nicholas Gall, Dr Adam Fitzpatrick, Shelley Dougherty, Lucie Green, Andrew Pontzen

Series 2 featuring: Professor Andrea Sella, Alex Probyn, Dr Nick Knight. Claudia Hammond, Dr Marek Kukula, Philip Ball, Dr Helen Czerski, Dr Susan Holmes, Professor Alice Roberts, Dr Claudia Uller, Professor Marcus du Sautoy

Series 3 featuring: Professor Linda Marchant, Professor Chris McManus, Professor Sophie Scott, Professor Dorothy Bishop, Professor Danielle George, Dr Louisa Preston, Tristan Bassingthwaighte, Professor Steve Bloom, Dr Aaron Cypess, Mark Miodownik, Dr Randy Lewis

Series 4 featuring: Michael Bonshor, Dr Vicky Williamson, Professor Frank Close, Andrew Pontzen, Alex Bellos, Jeff Heys, Eric Chudler, Claudia Hammond, Hugo Spiers, Catherine Loveday

Series 5 featuring: Professor Tim Spector, Ed Yong, Andrew Pontzen, John Hammond, Dr Jo Mountford, Dr Sheena Cruikshank, Dr Keri Nicholl, Dr Marek Kukula, Catherine Loveday, Martin Conway

Series 6 featuring: Dr John Bradshaw, Professor Matthew Cobb, Niamh Nic Daeid, Sheila Rowan, Andrew Pontzen, Professor Francis McGlone, Dr Brian Kim, Trevor Cox, Chris French

Series 7 featuring: Mark Miodownik, Jay Rayner, Lucie Green, Phil Livermore, Terry Virts, Shaun Keaveney, Dr Lauren Stewart, Rhys Phillips, Helen Czerski, Bill Domhoff, Mark Blagrove, Francesca Siclari

Series 8 featuring: Kate Jones, John Ratcliffe, Jackie Blisset, Linda Bartoshuk, Nick Robinson, Sarah Montague, Andrew Pontzen, Jim Al-Khalili, Rob Jenkins, Franziska Knolle, Rory Cellan-Jones, Ceri Brenner, Tom Murphy

Series 9 featuring: Carin Bondar, Lynne Boddy, Susie Maidment. Steve Brusatte, Mark Miodownik, Chris Lutz, Becky Wragg Sykes, Andrew Pontzen, Jo Dunkley, Jim Al-Khalili

Series 10 featuring: Rakhi Mahbubani, Sam Harper, Sean Carroll, Trevor Cox, Sophie Scott, Duncan Wisbey, Chris Moulin, Catherine Loveday, Jen Rogers, David Spiegelhalter, Lauryn Benedict, Miranda Krestovnikoff, Don Kroodsma

First broadcast on BBC Radio 4, 15th-19th February 2016 (Series 1), 30th May-3rd June 2016 (Series 2), 3rd-7th October 2016 (Series 3), 5th-9th December 2016 (Series 4), 13th-17th March 2017 (Series 5), 12th-16th June 2017 (Series 6), 25th-29th September 2017 (Series 7), 8th-12th January 2018 (Series 8), 26th February-2nd March 2018 (Series 9), 28th May-1st June 2018 (Series 10)