What is happening with wildlife is what's happening with people. It seems that infants and children, up to the age of puberty, are more at risk for adverse affects from hormone disruptors. Children's bodies are still growing. Children, especially infants and toddlers, put more contaminants into their mouths. Children are exposed to more toxic substances than adults.
Chemicals do go a long way in a small body.
One possible explanation is that PCBs and dioxins are structurally similar to thyroid hormones and thyroid disruption may affect the development of the auditory system in the fetus. This could be a contributing factor in the rise in childhood ear infections and the undetected hearing problems that play a role in certain learning disabilities. Not just children who live in rural agriculture areas are exposed to pesticides. Half the pesticide use in the U.S. is in urban areas. Early Puberty Girls are going through puberty and menstruation earlier than every before.