Essay About Human Evolution And H1

Human Evolution
Human EvolutionBy: Hoang Thong Summat (Jason )Lab partner: Abdul RehmanIntroduction  Please see week 13 on moodleAim: To investigate the evolution of the human species.Method:Please see week 13 on moodleAnalysis QuestionPart AComparison of a gorilla skull and a modern human skull.  Q1. The common ancestor for the gorillas and humans existed in between 8 and 10 million years agoQ2. Complete this table. The first structure has been completed for you.Feature to observeGorilaHumanForehead (G1 and H1)Forehead slopes backwardsHigh forehead(vertical)Brow ridge (G2 and H2)Large and heavySmall or absentSize of brain case in comparison torest of skull (G3 and H3)Smaller in size compared to humanIncrease to be much larger compared to other species.Slope on face (G4 and H4)Slops backwardVerticalSize and shape of teeth (G5 and H5)Large canine and molarSmall canine and molarSize of zygomatic arch (G6 and H6)LargeSmallSize of lower jaw (G7 and H7)LargeShallow and slightPresence or absence of sagittal crest (G8 and H8)PresentAbsentQ3. The teeth and the lower jaw of gorillas is larger compared to human. This indicates their    eating habits and the way they eat.For gorillas, they are more likely to have vegetarian diet, they eat stems, bamboo shoots and fruit which is much tougher so their canine and molar increase to be larger in size. Moreover, they need strength to chew on those tough food and therefore their jaw becomes larger to consume more energy to chew.For human, we only eat soft food which is already processed so our teeth decrease in size to have a small and uniform shape. Furthermore, we need less strength to chew on food compared to the gorillas and therefore our jaw becomes smaller.