This groundbreaking research was conducted by the Biomaterials research group at the University of Bayreuth in Germany and marks the first time CRISPR has been applied to spiders. The team targeted the common house spider (Parasteatoda tepidariorum), injecting unfertilized eggs with a CRISPR-Cas9 solution containing a gene for red fluorescent protein. After mating, the resulting offspring produced dragline silk that fluoresced red under specific lighting, confirming the successful integration of