BIOLOGY 1M03 Lecture 14: Notes - Package 6
31 Jan 2018
School
Department
Course
Professor
Document Summary
295-302: hominins refer to people and our upright ancestors, characterized by: Speci c changes in chewing design: teeth, jaws and skull. Evaluating evidence: there are a lot of theories and a great deal of expertise, but expertise can also lead to over-con dence, as with other examples, we try to make and test theories. 1. 1 upright posture fig 10. 11-12: how did upright posture and upright walking evolve, it"s not known, but there are many theories: Adaptation to walking on the ground instead of swinging through trees. Gradual evolution: hominins" evolution of upright posture was likely dependent on evolutionary history and circumstance. Built on previous adaptations: evolution of upright posture almost certainly led to further evolutionary change: Making and using tools: there should be lots of loops changes leading to other changes to explain how dramatically our ancestors evolved. Knees, hips, backs, skulls all provide evidence about posture. Teeth and jaws provide evidence about diet: evidence from archaeology.
