Unfortunately, the search results provided do not include the full text of the January 2026 Science article entitled "Adaptive spread of a sexually selected syndrome eliminates an ancient color polymorphism in wall lizards"[6]. Only abstracts, titles and links to the articles are available. From the information available, I can confirm that the research is looking at how a sexually selected syndrome spreads among wall lizards and how this process eliminates an ancient color polymorphism[6]. The study also examines how sexual selection and competition between males affect introgression (mixing of genes between populations)[8]. In order to produce an accurate and factual summary in the required 6-8 sentences with specific findings, statistics, and main results, I would need access to the full text of the article. I recommend accessing the article through the Science database or your institution.