Jay Lafferty joins Simon to judge suggestions for the next humans from hummingbird expert Dr. Sue Healy and cross cultural researcher Erin Robbins. The panel discuss internal fit bits, how animals lie and why you might need to vape on your baby.
Recorded as part of Explorathon, the European Researchers' Night at St. Andrews University.
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Our theme music was written and performed by Laurence Owen. Graphics by Theo Weedon, web design by Ian Bridgeman and support from the Wellcome Trust. The producer is Rachel Wheeley.