 He is the Maria Moors Cabot Professor of Biology at Harvard University, a Howard Hughes Medical Institute Investigator, He is especially noted for his investigations of endospore formation in Gram positive organisms such as "Bacillus subtilis".Losick received his AB in Chemistry from Princeton University in 1965, and his PhD in Biochemistry from Massachusetts Institute of Technology in 1969.Following his graduate studies, Losick was named a Junior Fellow of the Harvard Society of Fellows.