University of Minnesota: What Is C. elegans? roundworms C.elegans Caenorhabditis elegans studied for years C. elegans Caenorhabditis elegans (C. elegans) Caenorhabditis Elegans C.elegans University of Minnesota: What Is C. elegans? they know every single one of its 959 cells University of Minnesota: What Is C. elegans? roundworms University of Minnesota: What Is C. elegans?