Accidently finding genetic damage seemingly provided by exposure to BPA (bisphenol A), a common chemical in food wrappings, plastics and dental sealants. Several years later, the subsequent testing has shown proof. The chem causes an imbalance in the natural number of chromosomes in a given set. This causes genetic abnormalities in offspring.
The search is on to figure out if humans are exposed to intolerable levels of the chemical and how the chemical would effect fetuses if exposure was high.
BBC