Recently , diet , life span and population density were associated to directly act on primate brain sizes , especially the neocortex (Walker et al , 2006 . Mechanisms behind such increase in size involves generation of a large brain which consequently programs the body to increase food intake and lengthen its life span to be able to substantially maintain and develop a bigger brain . The brain has also evolved to accommodate changes for social interactions (Dunbar and Shultz , 2007 . Sexual selection is also involved...

Sagan , 89 . This is the evolutionary phase in which our ancestors - to cite Socrates ' parable - got out of the metaphorical cave of ignorance . Instead of being controlled by the environment , they had become masters of the environment , no longer were they passive creatures following a rigid pattern of survival . Of course , some academians would argue that increased brain size doesn 't mean an increase in intelligence as well . But Carl Sagan had a different opinion . He believed that intelligence is...

The slaughter industry appears to be the most attractive option in dealing with these horses . Purpose Statement The basic aims of the study are to suggest methods of enhancing business productivity for persons involved in slaughtering or horseracing within the public and private sectors and to identify better ways of setting goals and objectives for their racehorses . Additionally this will attempt to identify and recommend alternative uses for unwanted horses besides slaughtering . The research will be dealing with both facts...