Normative Features Of Attachment Theory Bowlby's fascination with the emotional ties that bind humans to each other began with an astute observation.Bowlby believed that from an evolutionary standpoint, despondency is a good second strategy to promote survival.In all human cultures and indeed in primate species, young and vulnerable infants display a specific sequence of reactions following separation from their stronger, older, and wiser caregivers.Bowlby believed that vigorous protest during the early phases of caregiver absence is a good initial strategy to promote survival, especially in species born in a developmentally immature and very dependent state.Immediately following separation, infants protest vehemently, typically crying, screaming, or throwing temper tantrums as they search for their caregivers.Intense protests often draw the attention of caregivers to their infants, who would have been vulnerable to injury or predation during evolutionary history if left unattended.According to this logic, if protests fail to retrieve the caregiver quickly, the next best survival strategy would be to avoid actions that might increase the risk of self-inflicted harm or predation.