Invented by behaviorial psychologist B. F. Skinner to study rats, the box (here, photographed by Sam Falk) was later modified into a baby tender. This "Baby in a Box" experiment was designed to make infancy easier for both the mother and baby by providing a soundproof, climate controlled environment in which clothes were not necessary. Unlike the box for rats, this box was designed as a glass crib and not to modify behavior. His own daughter was raised in a "baby box" until the age of two.