Zebrafish

The zebrafish (Danio rerio) is a freshwater fish belonging to the minnow family (Cyprinidae) of the order Cypriniformes. Native to India and South Asia, it is a popular aquarium fish, frequently sold under the trade name zebra danio (and thus often called a "tropical fish" although both tropical and subtropical). It is also found in private ponds.

The zebrafish is an important and widely used vertebrate model organism in scientific research. Zebrafish has been used for biomedicine and developmental biology. The species is used for studies, such as neurobehavioral phenomena. It is also used for psychological reasons such as abuse, cognitive, and affective disorders. The species are used to study and observe behavioral research.