Dancing atop the hill behind CSHL’s Grace Auditorium is an 80-foot-long, pearlescent chain of biological factories called ribosomes caught in the act of protein production. Designed by American artist Mara G. Haseltine, Waltz of the Polypeptides guides viewers through the birth of a B-lymphocyte stimulator (BLyS) protein via an elegant molecular dance routine reminiscent of a real-life Viennese waltz.