Poulin, RobertBennett, JerushaBlasco-Costa, IsabelDutra, Daniela de AngeliDoherty, Jean-FrançoisDowle, EddyFilion, AntoineFredensborg, Brian LHasegawa, RyotaHerrmann, Kristin KKeeney, Devon BKoehler, Anson VKoprivnikar, JanetLagrue, ClémentLane, Henry SLeung, Tommy LFLi, Chen-HuaMacLeod, Colin DMouritsen, Kim NNiebuhr, Chris NO'Dwyer, KatiePark, EunjiPaterson, Rachel APresswell, BronwenRandhawa, Haseeb SRuehle, BrandonSabadel, AmandineSalloum, Priscila MThieltges, David WThomas, FrédéricSelbach, Christian2026-05-062026-05-062026-04-28Evol Appl, ISSN: 1752-4571 (Print); 1752-4571 (Online), Wiley, 19(4), e70244-. doi: 10.1111/eva.702441752-45711752-4571http://hdl.handle.net/10292/21033Human activities are changing the natural world at an accelerating pace, and as a consequence exerting novel and often strong selection pressures on living organisms. For species with traits conferring huge inherent evolutionary potential, like parasites, the outcome may be rapid adaptive responses spanning multiple phenotypic traits. The rise of drug resistance in parasites of domesticated animals is well documented; however, rapid changes in other key parasite traits may go unnoticed. In this contribution to the Scientists' Warning series, we argue that parasites are capable of evolving quickly to meet the new pressures of the Anthropocene. After summarizing evidence demonstrating their ability to evolve quickly and the magnitude of the anthropogenic selection pressures they now face, we discuss the basic types of adaptive responses we might expect. Next, we propose methods to track rapid parasite evolution in real time, as well as possible approaches to either slow it down or mitigate its impact on animal production systems. Our aim is to raise awareness of this concerning but underappreciated phenomenon and appeal for greater research into rapid parasite evolution in the Anthropocene and its consequences.© 2026 The Author(s). Evolutionary Applications published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.http://creativecommons.org/licenses/by/4.0/anthropogenic pressuresaquacultureclimate changefood productiongenomic signaturemitigationmonitoringspace‐for‐time comparisonsthermal performance curves31 Biological Sciences3104 Evolutionary BiologyInfectious Diseases0304 Medicinal and Biomolecular Chemistry0603 Evolutionary Biology0604 Genetics3103 Ecology3104 Evolutionary biology3105 GeneticsJournal ArticleOpenAccess10.1111/eva.70244