Our Stolen Future is a book published in 1996, written by Theo Colborn which details the impact of chemical containments carried by the atmosphere and ocean on development and growth organisms. This book has completely changed the way scientists approach how they determine environmental impact due to chemical contamination. According to Our Stolen Future, the endocrine disruption hypothesis states that exogenous or synthetic chemicals can alter vital hormonal signals during growth and development. Chemicals primarily associated with endocrine disruption include: persistent organohalogens, certain pesticides, phthalates, heavy metals, and alkylphenols. Theo Colborns' research principle was to find the link between the increasing incidence of cancer and environmental contamination in the Great Lakes region. However, in field and laboratory studies, Colborn found that there was no direct link between contamination and cancer. However, Colborn discovered recurring patterns of abnormal behavior and deformed offspring among wild populations in the Great Lakes region. Elevated levels of polychlorinated biphenyls (PCBs), pesticides dieldrin, DDT, lindane, and chlordane have been found in tissue analyzes of wildlife from the Great Lakes region (Colborn et. al, 1996). These high levels were found in the offspring of wildlife that appeared healthy. This supports Colborns' hypothesis that these contaminations disrupt the hormones produced by the endocrine system during growth and development, which will then cause physical and behavioral abnormalities in the fetus. This prompted Colborn to change the focus of his research and instead decided to look for co...... middle of article ...... may not show obvious negative effects in the parent. Many critics, who have no scientific training, would say that the data collected by Theo Colborn and other scientists to test the endocrine disruption hypothesis cannot be used to explain persistent, latent problems in humans. 'man. However, this is not the case. From a cellular and molecular perspective, there is no fundamental difference between other animals and humans. This is especially true when it comes to the embryonic development of organisms such as the chick, frog, rat, turtle, and human fetus, as all appear similar and generally develop in the same way. It is for this reason that animals are continually used as test subjects for products intended for human use. The processes by which we develop, the way our immune system responds to changes, and the way our cells communicate are all essentially the same..