Oxford Sparks Big Questions

One in two people will be affected by dementia in their lifetime - whether that is as a patient, or somebody caring for a loved one. But what happens after a dementia diagnosis? Is there a clear pathway ahead? We chat to Jasmine Blane, a DPhil researcher at the Oxford Brain Health Clinic, about the work she is doing to help support patients in the midst of a dementia diagnosis, and into the future...

In popular culture, Tourette's syndrome is wrongly associated solely with outbursts of swearing in the context of lazy jokes. But in reality, the condition is far more complex than this stereotype suggests. When people without Tourette's jokingly blame their lack of self-control on the condition, it spreads misinformation and invalidates those who actually live with it. Despite this, comedy - when...

If you were hunting for some fossilised dinosaur footprints, where would you go? To a remote part of North or South America, perhaps? A deserted wilderness for sure... But how about Oxfordshire? We chat to Dr Duncan Murdock from the Oxford University Museum of Natural History about an incredible discovery made right on our doorstep. Photo © Dr Emma Nicholls / Oxford University Museum of Natural Hi...

Shh...hedgehog! It always feels like a privilege to catch a glimpse of one, as it snuffles away under the garden fence. And come the spring, our spiny - and usually solitary - little friends will be feeling in the mood for...romance. But what exactly does a female look for in a mate? And how do their intimate encounters even work when things are so very... spiky? Join us for this special Valentine...

Electric eels are pretty amazing creatures. Their bodies can release powerful electric charges - in some cases reaching 650 volts! So, what can scientists learn from these animals? Could nature hold the key to advancing our own energy solutions? We chat to Dr Yujia Zhang about how electric eels might inspire the batteries of the future.

Whether it's the bottle of water that you hastily grab at the train station, or your favourite guilty-pleasure fizzy pop, you may have noticed something different about your drinks lately - or at least their containers. Since July 2024, it's been EU law that bottle caps are attached, or 'tethered', on all single-use plastic bottles. But what exactly is the reason for this change? Will it really he...

Even if you'd never previously given much thought to the Northern Lights, chances are they were brought to your attention in 2024, when our social media feeds were set ablaze with beautiful images captured by awe-struck stargazers. Usually restricted to more northerly latitudes, this colourful natural phenomenon could be observed in the UK as far south as Cornwall. But why were we treated to this...

Mistletoe has long been associated with fertility, and even today, its presence hanging from the ceiling can prompt a few blushes. But, did you know, mistletoe is more than something beneath which to kiss at Christmas? It is actually a parasite, and has some rather peculiar biology behind it. We chat to mistletoe expert Ollie Spacey about what makes it so special, where you can spot it and - impor...

Evolutionarily speaking, it makes sense to have a lot of children. At the very least, we might expect a population to replace itself, with each couple having an average of two children. However, this evolutionary logic is not mirrored by current data: birth rates are falling in the UK, with many people choosing to either have one child, or no children at all. We speak to evolutionary anthropologis...

Chances are, you didn't notice the week-long wind drought that the UK experienced towards the end of 2023. However, this period of low wind speeds, combined with a cold snap, drove up our energy prices - something that may have caught your attention. So, what exactly do we know about wind droughts, and how can we apply this knowledge to plan for the low-carbon energy systems of the future? We chat...

Welcome back to the new series of the Oxford Sparks Big Questions Podcast! We are here to answer weird and wonderful questions about our world, with the help of science. And we're starting with a very big question! How do you sequence the genomes of 70,000 species?   Dr Liam Crowley, from the Department of Biology, tells us about the ground-breaking Darwin Tree of Life project, which aims to seque...

Summer is here, and with heatwaves forecast, how do we keep our homes cool without relying on air conditioning?   In the UK, soaring summer temperatures can be brief but powerful. So, what can we do? Nicole Miranda, from the Department of Engineering, shares practical, energy-efficient and eco-friendly strategies to help you stay comfortable during the hot months. And yes, ice creams are encourage...

Scientists are returning to the moon, but when they get there, what time is it? Dr Carly Howett from the Department of Physics explains the basics: what time is, and how we found a globalised way of understanding time zones so we can meet for a 3pm coffee or international video call, and everyone is in the right place at the right time. But how does that translate to space and why could the conseq...

Discover how the ancient art of origami is revolutionising sustainable energy! Researcher Jingyi Yang, from the Department of Engineering Science, has loved origami since childhood. Now she's channelling that passion to tackle engineering challenges. Using the intricate papercraft to develop clam-like models, Jinyi's creative engineering may be the key to improving the efficiency of energy produce...

When you think of fossils, you probably imagine dinosaurs. But did you know that soft body parts, like the brain, can become fossils too?  In this episode, forensic anthropologist Alexandra Morton-Hayward explores the science of brain fossilisation. Skeletons have been found in wells, Incan temples, salt mines and many other unusual locations, often with no other organs, hair or skin preserved. Wi...

Have you ever had a song stuck in your head that you just can't shake? A few bars or lyrics that just keep looping all day long? Well, we have delved into the science behind 'earworms' with Dr Jacob Kingsbury Downs from the Faculty of Music. A melodic mix of musical imagery, auditory neuroscience, memory and impressive compositions can leave a little ditty echoing in our minds long after the last...

Are seals the fishermen's friends or foes? The UK is home 35% of the world's grey seals and we know they like to get their flippers on many of the same fish as we do. So, how are seals impacting the fishing industry? In our latest podcast, Dr Claire Tanner from the Department of Biology explores the unseen conflict beneath the waves and the complex dynamics between these marine mammals and fisheri...

House plants can be a cheerful pop of colour in your home. But do you find after the initial burst of life, your plants start to fade, looking sad and unhealthy?   M Garrido Davies, from the Department of Biology, shares top tips for helping house plants to flourish, starting with learning more about the biology of how plants grow in their natural environment.   Did you know that when you add too...

Volcanoes are pretty amazing! But how do they work on other planets?   Take Mars – it has the largest volcano in the solar system! But volcanologist Tamsin Mather reveals that the red planet is now considered geologically dead, with no volcanic activity for around 500 million years. How do we know how this volcano formed then? Well, space missions have put probes and landers on Mars' surface, prov...

We are out in the wild today talking to bees!   In this behind the scenes episode, we visited Dr Rachel Parkinson's bee recording studio to see insect neuroscience research in action.    You might know that honeybees communicate with each other using the waggle dance, a minute choreography that shows other bees the way to the flower buffet. But little is known about how bumblebees communicate.   T...

Cats are pretty adorable! Those big eyes, fluffy paws and cheeky personalities mean that most people find felines cute. But what is the science behind this reaction? Neuroscientist Professor Morten Kringelbach reveals how special technology can track what happens to signals in the brain in response to sounds and images of babies and small animals. In just a thousandth of a second, our brain decide...

You might have seen them in a hotel. You might have read about them in the news. Maybe you've seen them star in social media videos filmed on the London underground. But should we really be worried about bed bugs?   The little critters evolved from feeding on bats and birds to humans thousands of years ago and were part of society for hundreds of years. But with the invention of synthetic pesticid...

Have you ever considered when kissing first started? Who, or what, first decided that this was a good way to show affection?   Ancient historian, Troels Pank Arbøll, and hedgehog researcher, Sophie Lund Rasmussen, joined forces to attempt to find an answer. Cuneiform scripts, which are the world's oldest written text, have the first mention of romantic kissing in a mythological narrative dating ba...

How do we battle the energy use and soaring costs required to keep our homes warm? We spoke to Dr Brenda Boardman from the Environmental Change Institute about the best ways to keep out the winter chill. Did you know that draughts not only let cold air in, but they also push the warm out of your home? And that sitting or sleeping next to external walls can make you colder? Discover simple and inex...

People have been interested in wine growing and quality vintages since the Roman times, but as the climate warms, what does this mean for the future of wine growers in the UK (and beyond)?   Andrew Wood, from the Department of Biology, has been studying the records of wine critics, which reveal much more than whether the bottle is a good vintage or not. The vintage can tell scientists what the gro...