|  | Click for alternate views | 
|  | |
|  | |
|  | |
|  | 
| Hominid Skull - Homo ergaster KNM - ER 3733 Estimated Age: 1.7 million years Location: Koobi Fora, East Turkana, Kenya | |
| created by North Carolina 
      School of Science and Mathematics copyright © 2013 North Carolina School of Science and Mathematics |  |