Teratology refers to disfiguring birth defects or malformations. Dr. Faqi is a full member of the Society of Toxicology and Teratology. In botany, teratology investigates the theoretical implications of abnormal specimens. Zebrafish embryos have proven to be a rapid, cost-efficient, and reliable teratology assay model. Teratology is the study of abnormalities of physiological development. He was a pioneer in the field of vertebrate teratology. He explains that he and Eric are doing teratology. There is no controlled teratology data in humans to date.