When examining eyewitness testimony, one finding suggests that when constructing a lineup, the similarity between the suspect and the fillers does result in missed identification of guilty suspects, but also substantially reduces mistaken identification of many innocent people.

During the paleolithic, hominins grouped together in small societies such as bands, and subsisted by gathering  plants  and fishing, hunting or scavenging wild  animals. the paleolithic is characterized by the use of knapped stone tools, although at the time humans also used  wood  and bone tools.