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Scientists have successfully engineered pigs to be largely immune to the Porcine Reproductive and Respiratory Syndrome (PRRS) virus through gene editing, a technique similar to the controversial CRISPR baby experiment. This project, driven by the potential to save billions of dollars in losses for the pork industry, focuses on removing a viral receptor from pig embryos. While raising ethical questions similar to those surrounding human gene editing, the potential economic benefits and the difference in animal species make this project viewed as less problematic than previous attempts, alongside other recent ventures like modifying wolves and creating glow-in-the-dark rabbits.