Ainsworth noted three distinct patterns in the babies' reactions. One group of infants protested and cried on separation, but when the mother returned, they greeted her with pleasure and were easy to console. She labeled this group securely attached. The second group of infants was characterized by a lack of distress during parental separation, and avoidance of the parent upon return. This group was called insecurely attached, and avoidant. The third group was labeled ambivalent or anxiously attached, and tended to be clingy from the beginning and afraid to explore the room. They became terribly anxious upon separation, yet displayed angry and resistive behavior upon the parent's return.