TY - BOOK AU - Simmons,Randy T. AU - Shaw,Jane S. TI - Endangered Species. T2 - Critical Thinking About Environmental Issues Series SN - 073771266X : PY - 2002/// CY - San Diego, Calif. PB - Greenhaven Pr KW - Endangered species N1 - Includes bibliographical references and index N2 - Investigates how serious the threat is to certain species called endangered, the effectiveness of the Endangered Species Act, global responsibility to protect plants and animals, and future concerns ER -