PSYCH 3F03 Lecture Notes - Lecture 8: External Fertilization, Biological Specificity
Document Summary
Lecture 8: species are groups that display >5% genetic divergence on a phylogeny, pros: applicable to any organism, reflects evolution, cons, genes can vary in rates of evolution (is 5% a good cutoff?) expensive. Learn 2 reasons why comparative studies btween species are a powerful research method. Learn the 4 f"s of animal behaviour and understand why learning about non human behaviour is relevant for understanding human behaviour. Learn the 3 major layers" of the anima lbrain and understand their functions. If we want to understand humans, only studying humans is limiting: ethics, ability to control, the double-edged sword of self-report. Physical competitions between one or more individuals that can often end in injury or death. Often, conflict is used as a means to gain access to resources, territory and mates. Because these behaviours are so ubiquitous, we can use comparative data to form strong, testable hypotheses about the same behaviours in other species the brain:
