<unk> ren lack the basic social skills that are normally learned in the process of enculturation. For example, they may be unable to learn to use a toilet, have trouble learning to walk upright after walking on fours all their lives, or display a complete lack of interest in the human activity around them. They often seem mentally impaired and have almost insurmountable trouble learning a human language. The impaired ability to learn a natural language after having been isolated for so many years is often attributed to the existence of a critical period for language learning, and taken as evidence in favor of the critical period hypothesis. There is little scientific knowledge about<unk> ren. One of the best-documented cases has supposedly been that of sisters Amala and Kamala, described by Reverend J. A. L. Singh in 1926 as having been "raised by wolves" in a forest in India. French surgeon Serge Aroles, however, has persuasively argued that the case was a fraud, perpetrated by Singh in order to raise money for his orphanage. Child psychologist Bruno Bettelheim states that Amala and Kamala were born mentally and physically disabled. Yet other scientific studies of<unk> ren exist, such as the case of Genie.
Feral child
Poster child
Savior sibling
Ben's Friends
Birth attendant
Women of Salerno
Medicine man
Infant