Since the 19th century, people have been trying to protect wildlife with special programs. The Endangered Species Act was passed in 1973, and by 1998, less than 1,000 animal species were listed as endangered. Such animals as giant pandas and tigers are on the top. These species not only ...
A.the government should make a strong effort to save endangered species of animals B.the case of the northern spotted owl reveals how scientists select one species over another or survival C.the conflict between environmentalists and industry will intensify as more and more animal species become ...