PSYB65H3 Chapter 2: PSYB65 Chapter 2.docx
Document Summary
Each branch point distinguishes animals position before that time point from animals positions after it by 1 or more physical / beh traits. Apes can brachiate, no primate preceding the ape can do so - fig 2. 1 p 30. Primates have excellent colour vision and enhanced depth perception (via fwd facing eyes) Change in hand structure allowed for skilled tool use. Changes in tooth structure + decrease in jaw size = more varied diet. Brain similarities and diff in humans and animals provide insight to brain beh rel. Animals have less complex anatomy = remain unevolved. Genetic basis of beh can be studied in animals with short lifespans = fruit flies. Understanding basic brain mech vision ex p 32. Uses cross species comparisons to understand basic brain function for given beh (because animals has limited beh in 1st place to be manipulated) Pax responsible for eye dev in all seeing animals. Mutation permanent transmissible change in gen material.
