Power to the Parasites with Chelsea Wood

Send us Fan Mail In this epsiode I had the pleasure of talking with Chelsea Wood, an Associate Professor at the University of Washington and a dedicated parasitologist. We talk about her middle-grade book, Power to the Parasites. The book provides a comprehensive, scientifically rigorous look at the oft-misunderstood creatures living in, on, and around us. Wood shares how her academic focus shifted from marine conservation to parasitology after discovering the intricate and vital roles these organisms play in global ecosystems. The core thesis of Wood’s book challenges the assumption that parasites are merely harmful anomalies; rather, they are ancient, ubiquitous, and integral to the natural order. Key insights from the conversation include the evolutionary logic behind complex, multi-host life cycles, the mechanisms by which parasites like Toxoplasma gondii actively manipulate host behavior, and the surprising reality that human-driven ecosystem changes are driving many parasite species toward extinction rather than proliferation. Key Topics Discussed: The true definition of parasitism and the evolutionary logic of the r-selection strategy Complex, multi-host life cycles (e.g., the Lancet Liver Fluke’s journey from snails to ants to grazing animals) Behavioral manipulation and "mind control" by parasites like Toxoplasma gondii The unexpected role of parasites in ecosystem balance and wildlife conservation The hidden crisis of parasite extinction driven by habitat loss and overfishing Tracking historical parasite populations by dissecting century-old museum specimens Find Chelsea Wood: Chelsea's website Chelsea on Instagram Chelsea's science book recommendations Book Science: Website: https://www.trippcollins.com/podcast.html Show notes & transcripts: https://www.trippcollins.com/show-notes Check out the Book Science Book Shop on BookShop.org Instagram: @booksciencepodcast Book Science Book Shop (bookshop.org) Welcome to the official bookshop.org bookshelf of the Book Science podcast. Disclaimer: This post contains affiliate links. If you make a purchase, I may receive a commission at no extra cost to you. Support the show