For the answer to the question above, <span>The adaptive radiation of the australopithecines after their split from the lineage that led to early homo seems to have focused on "<u><em>Mastication" </em></u> </span><span>Mastication is the first step of eating in which </span><span>food is crushed and ground by the teeth</span>
All of the power doesn't go to one party. There is an option for two. And it forces people to decide what they think to do with only two parties instead of more than two
