The Digital Fish Library (DFL) is a University of California at San Diego (UCSD) project funded by the Biological Infrastructure Initiative (DBI) of the National Science Foundation (NSF) (Grant DBI-0446389). The DFL creates 2D and 3D visualizations of the internal and external anatomy of fish obtained with magnetic resonance imaging (MRI) methods and makes these publicly available over the web. Digital Fish Library work has been featured in the media including two National Geographic Documentaries: Magnetic Navigator and Ultimate Shark.