The Endangered Species Act of 1973 replaced two previous laws, the Endangered Species Preservation Act of 1966 and the Endangered Species Conservation Act of 1969.
Additional species are still faced with the possibility of extinction. In December 1973 the United States Congress signed the Endangered Species Act of 1973, to protect and preserve threatened and endangered plants and animals from extinction. The Endangered Species Act of 1973 replaced two previous laws, the Endangered Species Preservation Act of 1966 and the Endangered Species Conservation Act of 1969.