In many instances, humans are a bizarre species. Unlike all other primates, humans have the ability to use language, read minds, invent intricate technologies, and create cumulative cultural knowledge and beliefs that are conveyed both within and across generations. The evolutionary idiosyncrasy of human nature is tightly connected to the evolution of our intelligence and large brains. At first glance, the evolution of acute dexterity does not seem startling, given its obvious advantages. Though, it remains an alluring puzzle because large brains present some challenging evolutionary roadblocks.