You can decide Essay Example | Topics and Well Written Essays - 1000 words - 1

You can decide - Essay Example Some of the fossils propose a geographical diversity and a difference in characteristics are KNM-ER 1808 and Trinil 2. In 1891, an archeologist named Eugene Dubois found angular, domed, and thick-walled human skullcap with a large shelf like brow ridge near Trinil, Java (Indonesia. He decided that the skull be named Trinil2 (Dorey). Another person, Kamoya Kimeu in 1974 discovered a 1.7 million years old femur of Homo erectus KNM-ER1808 in Koobi Fora in Kenya. This female Homo erectus has an incredible distinct feature that surprised the researchers; it has an abnormal layer of bone on her thigh that shows evidence of bleeding to her death. Scientists have concluded that it is an overdose of vitamin A. The two skulls have some significant differences between them. Trinil 2 has a long, flat forehead, distinct brow ridges and have sagittal keel (Dorey). The cranium of Trinil 2 is thick brow ridges that are sharply angled rear where the neck muscles attach. When the Trinil femur is compared with KNM-ER 1808, one will see that Trinil is considerably ‘human’ while the other is more of Homo er ectus. The skeleton of KNM-ER 1808 has almost complete right femur but unfortunately lacking a head. There have numerous changes in the evolution of the hominid that have occurred. These changes have significantly contributed to the change in the proportion of the skull. Different parts of the skull in various hominids are varying proportion. The change from one hominid can be noticed in face size, shape, brain capacity and even position of occipital condyles. In this Lab report, we shall measure different proportions, calculate indices and compare them with known or commonly recognized hominines species. 2. When the location of the points are known, connect their location with lines (porion intersects lowest point of the eye orbit such that line almost touch top circle and bottom edge). As shown in the guides. The ratio uv/tv of is