to reproductive age by ensuring that they have someone to love and care for them (the caregiver), and it meets one of the goals of the parents: to rear their offspring to reproductive age. The parents have a strong enough bond to want to stay and care for the child instead deciding it would be too much work. Raising a child is not an easy task and without this bond, the parents may leave. It creates a maternal instinct ensuring the proper care of the new child. This bond is formed to promote evolutionary fitness. Belsky (1997) states that “patterns of attachment evolved as psychological and behavioral vehicles for ‘translating’ information about prevailing ecological conditions into a fitness-enhancing reproductive strategy.”
Current research supports the idea that attachment in the missing facet in evolutionary theory. Bartholomew (1990) suggest that this mechanism, inherent in humans in the form of infant-caregiver attachment, stays with a person for their entire life and later assists in the task of mate selection. It is evolutionarily productive to have an inborn mechanism for keeping parents together. The infant-caregiver bond keeps the mother near the child, but there must be something that keeps both of the parents around. The mother is needed for food; the father is needed for protection. It is an evolutionary adaptation that goes beyond current evolutionary theory.
The idea of adult attachment does not run contrary to evolutionary theory, instead it goes hand in hand, filling in the gaps that evolutionary theory alone leaves open. Why does a man stay with a woman after the baby is old enough to be on its own? Why is