Endangered species are defined by the Endangered Species Act as any species which is in danger of extinction throughout all or a significant portion of its range.
The Endangered Species Act, passed into law in 1973. It requires federal and state governments to protect all species threatened with extinction that fall within the borders of the United States and its outlying territories. The U.S. Fish and Wildlife Service (USFWS) of the Department of the Interior and the National Oceanic and Atmospheric Administration (NOAA) of the Department of Commerce are responsible for the conservation and management of fish and wildlife resources and their habitats, including endangered species.
"Endangered Species Act." Britannica Academic, Encyclopædia Britannica, 5 Feb. 2018. academic.eb.com/levels/collegiate/article/Endangered-Species-Act/474134. Accessed 8 Feb. 2018.
To help you get started you will find resources in this guide organized as follows—
Background Research: Reference sources, like encyclopedias, help you develop a broad understanding of your topic
Books: Print and ebooks often offer greater depth of info about a topic, although others focus broadly.
Articles: Periodicals can provide timely, focused information about specific aspects of your topic.
Government and NGO Info: Links to government and non-government organization (NGO) resources which are reliable sources of information about endangered species.