A human child who has lived away from human contact from a very young age so has no experience of human care, social behaviour or language. They are confined by humans or raised by animals.
Nature/Nurture
The term given to the debate of whether behaviour is determined by biology/genes or by the process of learning. Nature is 'instinct', Nurture is 'learned'.
Instinct
A behaviour that is 'natural'/innate (often seen in animals)