Born joined at the pelvis, Siamese twins Dao and Duan were brought to the United States from Thailand to assess their chances for being separated surgically. NOVA covers the intricate planning and protracted operations that eventually made the two girls into two distinct individuals.

A series of five programs inspired by Diane Ackerman's book A Natural History of the Senses, each examining one of the senses. (Part 2 of 5)