The value of the zebrafish (Danio rerio) as a model for human disease has b
een substantiated by a number of recently published papers. Several zebrafi
sh mutants with "human'' diseases have been found, spanning a variety of hu
man pathologies. These successful studies utilizing the zebrafish have been
made possible by the development of key reagents such as YAC, PAC, and BAC
libraries, as well as radiation hybrid panels. With the further establishm
ent of new tools and access to the newly generated resources, the zebrafish
is poised to serve as a novel model for human disease.