July 1, 2001 Dancer on the Wing Most popular Harvard researchers achieve medical breakthroughs in cancer therapy and infection control. Growing liver implants, mapping the sense of smell, and journalism at risk Discoveries Short takes on cutting-edge research Explore More From Current Issue Arts & Culture The play Spare Parts is a contemporary fable about the quest to live forever. Museums & Collections Harvard Art Museums restores a rare glimpse of an American master. Letters to the Editor Inseparable cows, big dogs fostering a tiny kitten, and a show beagle’s second act