Naked Scientists

In this week's show, wildfires continue to race across the world in Canada, Ireland, Scotland and Italy. Why are they happening, and what can we do to prevent them? Plus, scientists track neighbourhood food consumption from DNA in sewage, the first evidence of an "exomoon" orbiting a planet outside our solar system, and how tiny "algebots" can deliver cancer chemotherapy in the bladder. What makes these critters remote-controlled? Like this podcast? Please help us by supporting the Naked Scientists

How can algae microbots deliver drugs for bladder cancer? Why does a helium balloon fly backwards when you hit the brakes in a car? Does the Sun make ash? Will removing your gallbladder affect your cholesterol? Is there a symbiotic relationship between spiders and antelopes? Can cloud seeding affect rainfall? What causes restless legs? Why are global sperm counts dropping? And what holds the universe together? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

This week, our Titans of Science series continues with neuropsychologist and author Adrian Owen. Adrian's work has focused on determining how different parts of the brain contribute to functions such as cognition and memory, and famously led to him being being able to communicate with a patient in a long-term vegetative state using a brain scanner. Here he retells the story, and explains the basis of what we call consciousness... Like this podcast? Please help us by supporting the Naked Scientists

Dr Chris Smith and Clarence Ford return to answer your questions. Why do wombats produce cube-shaped droppings? Does sleeping position affect dreams? Can we predict penalty shootout winners? What do penalty statistics show about power vs placement? What are the pros and cons of statins? Is a cloned tree's DNA young or old? Why do golf balls have dimples? Could you outdrive Rory McIlroy on Mars? Like this podcast? Please help us by supporting the Naked Scientists

A new drug called Trontinemab, which could stop Alzheimer's disease, is about to start clinical trials. How does it work? Also, scientists at the University of Oxford have created a vaccine to fight Ebola; researchers have documented three different types of severe pneumonia; and why the discovery of sugars in space matters. Like this podcast? Please help us by supporting the Naked Scientists

Titans of Science continues with plant biologist Enrico Coen, a professor at the John Innes Centre in Norfolk. His work investigates how genes move and interact to create tissue shapes during plant development, and how this process varies to produce such a wide range of plant forms. In this episode, we find out how Enrico's early work on fruit flies paved his path to plants, and his work on 'jumping' genes and their effect on plant variation. He's been speaking with Chris Smith. Like this podcast? Please help us by supporting the Naked Scientists

Malaria has been killing humans for at least fifteen thousand years, and our DNA still carries the scars. Ninety percent of the world's malaria cases are in Africa. But this isn't just a modern health crisis. It's written into our evolutionary history. New research from the University of Cambridge reveals that early humans actively avoided malaria hotspots across Africa for tens of thousands of years. The archaeological record is striking: mosquitoes thrived where people didn't live. Until something changed. Around fifteen thousand years ago, a genetic mutation emerged in West Africa: the... Like this podcast? Please help us by supporting the Naked Scientists

What is the impact of being a child in a home where a sibling has a chronic medical condition? What happens before we have a thought? How bad are processed foods for us? And how can a woman give birth to twins that have different fathers? Dr Chris Smith and Relebogile Mabotja have the answers. Like this podcast? Please help us by supporting the Naked Scientists

Coming up, Wegovy weight loss pills are now available in pharmacies and online in the UK. Will they help tackle obesity? Plus, how scientists are trying to restore sensation in the feet; the legacy of Dolly the sheep 30 years on; and space rovers and the solar eclipse with the astronomer Megan Argo. Like this podcast? Please help us by supporting the Naked Scientists

Titans of Science returns with Tara Spires-Jones, a world-leading neurobiology researcher and Director of the Centre for Discovery Brain Sciences at the University of Edinburgh. She studies the mechanisms and reversibility of neurodegeneration in Alzheimer's disease and other degenerative brain diseases. We explore Tara's path to neuroscience, the history and biology of Alzheimer's, and treatments developed to overcome it. Tara has been speaking with Chris Smith. Like this podcast? Please help us by supporting the Naked Scientists