is distribution of labour makes sense when you consider it from an evolutionary perspective.
Think about how reflexive the behaviours of a frog are compared to humans. Then compare the
proportion of subcortical structures in frogs versus humans.
• The frog brain contains a high proportion of subcortical neurons.
• The human brain contains a relatively large proportion of cortical neurons compared to
subcortical neurons. Consider the large number of gyri and sulci in the human cerebral cortex.
