He rigged some of the mother replicas with a bottle that provided food and his findings showed that the monkeys clung to and formed a connection with the soft wire mother, and only went to the wire mother to feed. Once fed, the monkey went back to the soft covered mother replica for comfort and security. The results of this experiment proved that infants desire and need for a somewhat loving touch to feel safe, cared for, and emotional comfort (McLeod, 1970). In another experiment, Harlow separated monkeys, at birth from each other; he kept the monkeys in isolation for different intervals of three months, six months, nine months, and one year (McLeod, 1970). After the end of each time frame, he put the monkeys in a population of other monkeys to see their interaction. The monkeys keep in isolation for three months were not as adversely affected and somewhat recovered socially, but the monkeys kept apart for six to nine months suffered from fear and were combative and aggressive towards the other monkeys. They were not welcomed and accepted by the other monkeys and harmed themselves by pulling out their hair and they scratched and bit themselves