Science Weekly

• Streams of medicines: what’s hiding in the UK’s waterways?

  The UK is known for its national parks: areas of outstanding natural beauty with rolling hills and crystal-clear streams and lakes. But research has shown that England’s most protected rivers are full of pharmaceuticals. In episode one of a two-part series, biodiversity reporter Phoebe Weston tells Madeleine Finlay about the problem of chemical pollution in our waterways, and how it could be contributing to what the World Health Organization has described as ‘the silent pandemic’ – antimicrobial resistance.. Help support our independent journalism at theguardian.com/sciencepod

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• ‘Parasites should get more fame’: the nominees for world’s finest invertebrate

  Invertebrates don’t get the attention lavished on cute pets or apex predators, but these unsung heroes are some of the most impressive and resilient creatures on the planet. So when the Guardian opened its poll to find the world’s finest invertebrate, readers got in touch in their droves. A dazzling array of nominations have flown in for insects, arachnids, snails, crustaceans, corals and many more obscure creatures. Patrick Barkham tells Madeleine Finlay why these tiny creatures deserve more recognition, and three readers, Sandy, Nina and Russell, make the case for their favourites.. Help support our independent journalism at theguardian.com/sciencepod

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• Keto: what’s the science behind the diet?

  While other diet fads come and go, the ultra low carbohydrate Keto diet seems to endure. But as scientists begin to understand how the diet works, more is also being discovered about its risks. To find out more, Madeleine Finlay speaks to Javier Gonzalez, professor in the department of health at the University of Bath, with a special interest in personal nutrition. He explains how the diet works, what it could be doing to our bodies and what could really be behind the weight loss people experience while on it. Help support our independent journalism at theguardian.com/sciencepod

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• The rise and fall of DNA testing company 23andMe

  The genetic testing firm 23andMe has filed for bankruptcy, another twist in the story of a company that promised a pioneering approach to precision health. Now users are scrambling to delete their personal data, with the future ownership of the firm uncertain. To understand the highs and lows of 23andMe’s journey, Madeleine Finlay hears from the Guardian US tech reporter and editor Johana Bhuiyan, and from Timothy Caulfield, a professor of law at the University of Alberta, who has a special interest in health and biotechnology. Help support our independent journalism at theguardian.com/sciencepod

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• Where do our early childhood memories go?

  It’s a mystery that has long puzzled researchers. Why can’t we remember our early childhood experiences? Freud called the phenomenon infantile amnesia, and for many years scientists have wondered whether it’s a result of failure to create memories or just a failure to retrieve them. Now new research appears to point to an answer. To find out more, Ian Sample talks to Nick Turk-Browne, a professor of psychology at Yale University.. Help support our independent journalism at theguardian.com/sciencepod

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