This book addresses the biological effects of the reasonably large number of classes of compounds that have been recognized as endocrine disrupters. These compounds have been found to persist as pollutants in the environment, and have been blamed for causing developmental disorders and/or fertility problems in fish, amphibians, reptiles, birds, and possibly humans. This book presents the relevant fundamentals of the endocrine systems of animals and humans, the toxicology, developmental toxicology, ecology, and risk assessment methods, and lays out the current state of understanding for the...

Founded in 1920, the National Football League chose famed athlete Jim Thorpe as its first president, a position he held briefly until a successor was elected. From 1921 to 1939, Joe F. Carr guided the sport of professional football with intelligence, hard work, and a passion that built the foundation of what the NFL has become: the number one sports organization in the world. During his eighteen-year tenure as NFL President, Carr created the organization's first Constitution & By-Laws; implemented the standard player's contract; wrote the NFL's first-ever Record and Fact Book; helped split...