Parasites have roamed the Earth for a long time. They were here before the dinosaurs: The oldest fossils are more than 500 million years old. Today on the show, <a href="https://www.npr.org/people/1082526815/regina-g-barber"target="_blank" >Regina G. Barber</a> speaks with paleontologists <a href="https://saccoglossus.wordpress.com/"target="_blank" >Karma Nanglu</a> and <a href="https://kvistlab.wordpress.com/people/"target="_blank" >Danielle de Carle</a> about a mysterious fossil called the “Riddler,” and the oldest-ever leech fossil. They share stories of the enduring power of parasitism through the ages and why the clues to prehistoric mysteries may be tucked in a basement. Interested in more science behind rare fossils? Email us your question at <a href="mailto:shortwave@npr.org"target="_blank" >shortwave@npr.org</a>. Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at <a href="http://plus.npr.org/shortwave"target="_blank" >plus.npr.org/shortwave</a>. Learn more about sponsor message choices: <a href="https://podcastchoices.com/adchoices">podcastchoices.com/adchoices</a> <a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

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Parasites Have Haunted Us For Millions Of Years

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