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<p>This episode: Many organisms produce the smell of earth, geosmin, and many others can sense it–but why?</p> <p><span style="font-size: medium;"><a href= "http://traffic.libsyn.com/bacteriofiles/BF489.mp3">Download Episode</a></span> (6.0 MB, 8.7 minutes)<br /> <br /> <span style="font-weight: bold;">Show notes:</span><br /> Microbe of the episode: <a href= "https://pubmed.ncbi.nlm.nih.gov/12073029/" target="_blank" rel= "noopener"><em>Acidianus</em> spindle-shaped virus 1</a></p> <div> </div> <div><a href= "https://www.sciencedaily.com/releases/2022/04/220405143530.htm" target="_blank" rel="noopener">News item</a></div> <div><strong> <br /></strong></div> <div><strong>Takeaways</strong></div> <div>The smell of soil or earth is one of the most recognizable smells, and comes largely from a chemical called geosmin, produced by many different kinds of bacteria. Many animal species are sensitive to geosmin, some attracted by it and others repelled. But it is still not entirely understood...