by Jim Fessenden, University of Massachusetts Medical School Caenorhabditis elegans. Credit: Kbradnam at English Wikipedia/Wikimedia Commons, CC BY-SA 2.5 Using four unrelated strains of the microscopic nematode C. elegans originating from different parts of the world, a group of worm biologists have developed a model system to study individual differences in metabolism. The use of C. elegans, a widely...
