Fear of the stranger: a critical examination.
D000220:Adaptation, Biological; D000328:Adult; D000367:Age Factors; D000818:Animals; D001007:Anxiety; D001288:Attention; D001522:Behavior, Animal; D002657:Child Development; D003448:Crying; D004285:Dogs; D005106:Exploratory Behavior; D005149:Facial Expression; D005239:Fear; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009034:Mother-Child Relations; D009043:Motor Activity; D009769:Object Attachment; D002679:Pan troglodytes; D011582:Psychological Theory; D051381:Rats; D012919:Social Behavior; D013045:Species Specificity; D009626:Terminology as Topic