Zebrafish research involves studying the small freshwater fish, Danio rerio, which is widely used in scientific experiments. Their transparent embryos allow scientists to observe developmental processes in real-time, making them valuable for understanding genetics, disease mechanisms, and drug testing. Additionally, zebrafish share a significant amount of genetic similarity with humans, which helps researchers model human diseases, such as cancer and heart conditions. This research contributes to advancements in biomedical science and offers insights into potential treatments and therapies for various health issues.