CarsonŐs fears were not unfounded.  In the 1970s, high concentrations of industrial polychlorinated biphenyls were found in eagles and shore birds of the Great Lakes regions.  Eggshell thinning, poor chick survival, morphological deformities, and mating behavior abnormalities were some of the problems these birds experienced.  Like Carson, Dr. Theo Colborn, who compiled the information on the effects of EDCs on Great Lakes birds, fish and mammal populations, wrote the book Our Stolen Future.  The book was instrumental in drawing connections between the effects of EDCs on wildlife and their potential effects on humans.