An official website of the United States government
The .gov means it's official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.
The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
Biodiversity.
Wilson EO, Peter FM, editors.
Washington (DC): National Academies Press (US); 1988.
Table of contents
Your browsing activity is empty.
Activity recording is turned off.
Turn recording back on