Instant Genius

Traditionally, ecologists wanting to take stock of the diversity, health and population levels of animal species within a given environment have needed to tie on their boots, get out in the field and painstakingly record what they are able to observe manually. But the emerging field of ecoacoustics – the use of sound recording to survey the biodiversity within ecosystems – is promising to be a game-changer in the way researchers are able to approach this work.

As part of our Science of Sound miniseries, we’re joined by Dr Sarab Sethi, the head of the ecosystem sensing research group at Imperial College London. To talk about his work in this exciting new field.

He tells us how advances in technology are providing new methods of monitoring wildlife in greater detail than ever before and why cross-collaboration between engineers and conservationists is vital in the fight against biodiversity loss.
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Our world may look vibrant and full of color. But in reality, our human eyes are only picking up the tiniest slice of all the light shining in the Universe. To astronomers this hidden light is just as important as the red greens and blues we can see. We talk to Alfredo Carpineti about what secrets are lying in the Universe beyond human vision, while celebrating another aspect that the rainbow has come to represent - the LGBT+ community.
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When it comes to the sounds we encounter in the natural world, few have the beauty, elegance and variety of birdsong. But these distinctive vocalisations are not simply static calls that are common to all birds of a certain species that are passed on from one generation to the next. They vary from region to region and even evolve in single populations over time in much the same way that the style of music in the pop charts changes over time.

As part of our Science of Sound miniseries, we’re joined by Dr Nilo Merino Recalde, a senior conservation scientist at the RSPB, to talk about the fascinating science behind the evolution of birdsong.

He tells us about his work on tracking the evolution of birdsong as it passes from place to place and from generation to generation, how advances in AI technology are enabling birdsong researchers to learn more about this process than ever before, and what this research can tell us about the evolution of culture in the animal kingdom as a whole.
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Over thousands of years, human beings evolved to walk upright on two legs, efficiently and over long distances. But these days, thanks to changes in our lifestyles, we’re becoming more sedentary than ever, and this is having profound effects on our health and well-being.

In this episode, we’re joined by Courtney Conley, a doctor of chiropractic medicine, and Milica McDowell, a doctor of physical therapy and exercise physiologist, to talk about their latest book, Walk – Your Life Depends on it.

They tell us why the oft-quoted 10,000 steps rule has no grounding in science, and was in fact originally, dreamt up as a marketing slogan to sell pedometers in the 1960s, explain the many things the way we walk can tell us about that state of our health, and give us some advice on what we should look out for when shopping for shoes that will help us get the most benefit from our daily walks.
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Hedgehogs are in decline all over Europe. These prickly little fellas are faced with so many threats – in their rural habitats, in our gardens, and on our roads. But new research about hedgehog hearing could help us protect these adorable creatures from going extinct.

As part of our Science of Sound miniseries, we speak to Dr Sophie Lund Rasmussen, a scientist who has dedicated her life to hedgehog research and conservation. Also known as Dr Hedgehog, she’s a research fellow at the University of Oxford, and assistant professor at the University of Copenhagen.

Sophie tells us all about hedgehogs – what she loves about them, and how we can do our bit to help them thrive. She also explains her recent study on ultrasound, which she hopes could significantly reduce encounters between hedgehogs and cars.
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