Viewpoints: 40-year-old Endangered Species Act sets a high standard in forbidding extinction

More than 40 years ago I began studying California’s amazing freshwater fish fauna, made up mostly of species that lived nowhere else. Back then few people cared about these species. Only a handful of biologists had studied the native fishes, aside from trout and salmon. That all changed with the birth of the federal Endangered Species Act, 40 years ago Saturday.  Read more here  sacbee 12:47