The zebrafish is a small, freshwater fish native to the rivers of South Asia. It is popular in scientific research due to its transparent embryos, which allow scientists to observe development in real-time. Zebrafish are often used in studies related to genetics, disease, and drug testing, making them valuable in the field of biomedical research. In addition to their scientific importance, zebrafish are also kept as pets in aquariums. They are known for their vibrant colors and active swimming behavior. Their friendly nature and ease of care make them a favorite among both novice and experienced fish keepers, contributing to their popularity in the aquarium hobby.