Abstract
Endocrine disruptor interferes with the biological functions of natural hormones in the body which is responsible for the maintenance of homeostasis, reproduction, development, and/or behavior. A number of chemicals in the environment may disrupt the endocrine systems of aquatic and wildlife and have been shown to disrupt female reproductive function throughout the life span. Certain endocrine-disrupting chemicals can substantially reduce some animal populations and there can be extreme differences in the susceptibility between species to these chemicals. A variety of test methods are available but it is not known which one(s) is the best to determine the effects of endocrine-disrupting chemicals.