You may know about the vital public health services performed by the U.S. Centers for Disease Control and Prevention (CDC). But did you know that the CDC is also a fount of free images?
Media produced by federal employees in the line of their official duties are usually destined for the public domain. As a result, the agency's Public Health Image Library (PHIL) hosts a trove of images that can be used openly, without prior permission, for anything from science blogging to t-shirt design.
Below is a sampling from the CDC's electron microscopy files.
The views expressed are those of the author(s) and are not necessarily those of Scientific American.
ABOUT THE AUTHOR(S)
Alex Wild is Curator of Entomology at the University of Texas at Austin, where he studies the evolutionary history of ants. In 2003 he founded a photography business as an aesthetic complement to his scientific work, and his natural history photographs appear in numerous museums, books and media outlets.