The secret world hidden in the ground below us episode artwork

EPISODE · Aug 23, 2026 · 36 MIN

The secret world hidden in the ground below us

from Instant Genius · host Our Media

Though we’re often not aware of it, the ground beneath our feet is teeming with an abundance of life and activity – from the complex networks of fungi and tangled roots put down deep into the Earth by the plants that live on its surface to the staggering variety of organisms that make their homes in the damp and darkness of the soil. This vast, fascinating ecosystem is vital for the health of the planet but remains largely unstudied. In this episode we’re joined by Dr Frank Ashwood, a lecturer in ecology and entomology at Lincoln University, New Zealand, to talk about his latest book, The World Beneath Our Feet – The Hidden Life of Soil and Why it Matters to us All. He tells us how more than half of the planet’s biodiversity is found living within soil, how the animals that live underground have inspired innovations in medicine and technology and how we may be able to use our knowledge of soil biology on Earth to help us in our quest to establish colonies on other planets. Take your curiosity further with a subscription to BBC Science Focus magazine. Every issue is packed with fascinating insights into the science behind everyday life, the latest breakthroughs and expert analysis, delivered straight to your door. Receive an extra £5 when you subscribe using the code SF5OFF, (minimum spend £20, see full terms and conditions on our website).  https://www.ourmediashop.com/bbc-science-focus-magazine-pod30 Learn more about your ad choices. Visit podcastchoices.com/adchoices

Episode metadata supplied by the publisher feed · Published Aug 23, 2026

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The secret world hidden in the ground below us

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