Zebrafish toxicology testing is using a much more robust and sensitive model to evaluate vertebrate development pathways and toxicity than small-animal models. The zebrafish has many advantages as a model organism, such as small size, ex utero development of the embryo, and short reproductive cycle. Genotoxicity and developmental toxicity are readily viewable through the transparent embryo during development. Besides, the zebrafish shares a high degree of homology with the human genome.
