Review papers and research papers are really different in some key ways. Research papers are way longer because they have original research that the author actually did themselves. They usually just have one author too since it’s their own work. Research papers focus on one specific research question or topic. Review papers on the other hand cover a bunch of topics by looking at what’s already been published. They normally have multiple authors who summarize and analyze earlier studies. Review papers don’t have new data, they just evaluate what’s already out there. So research papers bring new info to the table, while review papers analyze the current state of knowledge. Basically, research papers do new stuff and review papers review existing stuff. That’s the gist of the main differences between the two types of papers.