Romulus and Remus represents the mythological founders of Rome being suckled by a protective she-wolf. This scene, often depicted in Western art, is rendered here in a most whimsical manner: both the boys’ genitals and the wolf’s nipples are represented by wooden doorstops. The sculpture’s armature consists of a single wire that is twisted and bent to suggest both volume and void. Romulus and Remus is a drawing executed in space; its calligraphic outline is the equivalent of Calder’s rapid, abbreviated pencil-and-pen sketches of acrobats and animals. Although entertaining and uncomplicated in execution, it explores issues critical to 20th-century sculpture: the interchangeability of space and mass, translucency, and the relation of two- to three-dimensionality. While Calder experimented with other unusual materials, his favorite medium was wire. Its flexibility and capacity to vibrate may have inspired his kinetic sculptures.