Elissa Hallem, 34, a neurobiologist at the University of California at Los Angeles who explores the physiology and behavioral consequences of odor detection in invertebrates, is among 23 recipients of this year's MacArthur Foundation "genius grants." (AP Photo/Courtesy of the John D. and Catherine T. MacArthur Foundation, Stephanie Diani)

Photo by: Stephanie Diani

Elissa Hallem, 34, a neurobiologist at the University of California at Los Angeles who explores the physiology and behavioral consequences of odor detection in invertebrates, is among 23 recipients of this year's MacArthur Foundation "genius grants." (AP Photo/Courtesy of the John D. and Catherine T. MacArthur Foundation, Stephanie Diani)