2l)l)(i 



T 2000 



1900- 



l Sill i ■ 



1 nil 



li - 



1 500 - 



a. 

 « 



I4IHI- 



1 300 ■ 



1200- 



1100 - 



1000- 



000- 



800- 



700- 



(.00- 



500- 



100- 



1350 



J-1000 



A . afr. H. hah. H. er.er. H. er.pek. II. sap. 



N = 6 N = 3 N = 6 N = 5 N = 1000s 



Figure 31: Tentative graphical representation of the increase in brain size 

 from fossil to modern hominids. For each taxon shown, the sample 

 mean and sample range are given. (A. afr.) Australopithecus africanus; 

 (H. hab.) Homo habilis; (H. er. er.) Homo erectus erectus; (H. er. pek.) 

 Homo erectus pekinensis; (H. sap.) Homo sapiens. 



3* 98 



