Zebrafish (Danio rerio) have emerged as a pivotal model organism in scientific research, owing to their genetic similarities to humans, rapid development, transparency, and regenerative abilities. These cost-effective fish are valuable for studying embryogenesis, organogenesis, and diseases such as cancer and neurological disorders. Their amenability to genetic manipulation via CRISPR/Cas9 facilitates precise gene function studies, while their use in drug screening and environmental toxicology deepens our understanding of therapeutics and environmental health. Zebrafish also serve as a platform for behavioral research, offering insights into neural and evolutionary aspects, making them an invaluable asset in a broad spectrum of scientific investigations.