Gua was a chimpanzee raised as though she were a human child by scientists Luella and Winthrop Kellogg alongside their infant son Donald.
She was given, along with her mother, Pati, and her father, Jack, to the old Orange Park, Florida, site of the Yerkes Regional Primate Research Center, by Pierre Abreu on May 13, 1931, after the death of his mother, Madame Rosalia Abreu.
For nine months the Kelloggs raised the two as "brother and sister", and comprehensively recorded the development of the chimpanzee and the human child.
When she was around one year old, Gua often tested ahead of Donald in such tasks as responding to simple commands or using a cup and spoon.
On March 28, 1932, nine months into the experiment, the Kelloggs officially ended it as Donald began to copy Gua's sounds[citation needed].