Dr. Geonildo Rodrigo Disner completed his bachelor's degree in Biological Sciences with honors in 2012. He is a Master of Science and Doctor in Genetics with experience in Molecular Mutagenesis and Environmental Toxicology. Some of the research topics are related to emerging contaminants, PAHs, ecotoxicology, green toxicology, and alternative animal experimentation. Currently, he is a postdoctoral fellow at Butantan Institute investigating immunoregulation, immune response, and toxinology using the gold-standard model Danio rerio. He was a Trainee member at The American Association of Immunologists (2020–2021). His research interests are new drug development, toxins, immunoregulation through miRNAs, epigenetics, molecular toxicology, environmental mutagenesis, and science outreach.