The following list includes several specialized databases that provide broad coverage of endangered and threatened species. There are also some research databases of a more general nature included here that would be helpful for researching this topic as they cover a variety of aspects of animals, science, conservation and law.
Note also that there are variations in how subjects are categorized in each database. However, the list included in this guide of subjects and keywords may be helpful when searching many online databases.
The subscription resources marked with a padlock 
are available to researchers on-site at the Library of Congress. If you are unable to visit the Library, you may be able to access these resources through your local public or academic library.
Featuring the complete archive of the magazine to the mid 1990s, National Geographic Magazine Archive, 1888-1994, includes every page and every photograph, all fully searchable through an intuitive interface.
OECD iLibrary is the gateway to OECDs analysis and data. Contains all the publications and datasets released by the Organisation for Economic Co-operation and Development, International Energy Agency (IEA), Nuclear Energy Agency (NEA), OECD Development Centre, PISA (Programme for International Student Assessement), and International Transport Forum (ITF) since 1998. Arranged under 19 thematic areas covering issues in agriculture and food, development, economics, education, employment, energy, environment, finance and investment, governance, industry and services, nuclear energy, science and technology, social issues, taxation, trade, transport, and urban, rural and regional development. Types of OECD publications include ebooks, papers, statistics, factbook and glossaries.
NOTE: To access SourceOECD Books, Papers, Statistics, Factbook, or Glossaries, please click on the appropriate tab.
