Why do three out of four professional football players go bankrupt? How can illiterate jungle dwellers pass a test that tricks Harvard philosophers? And why do billionaires work so hard -- only to give their hard-earned money away? When it comes to making decisions, the classic view is that humans are eminently rational. But growing evidence suggests instead that our choices are often irrational, biased, and occasionally even moronic. Which view is right -- or is there another possibility? In this animated tour of the inner workings of the mind, psychologist Douglas T. Kenrick and business professor Vladas Griskevicius challenge the prevailing views of decision making, and present a new alternative grounded in evolutionary science. By connecting our modern behaviors to their ancestral roots, they reveal that underneath our seemingly foolish tendencies is an exceptionally wise system of decision making. From investing money to choosing a job, from buying a car to choosing a romantic partner, our choices are driven by deep-seated evolutionary goals. Because each of us has multiple evolutionary goals, though, new research reveals something radical -- there's more than one "you" making decisions. Although it feels as if there is just one single "self" inside your head, your mind actually contains several different subselves, each one steering you in a different direction when it takes its turn at the controls. The Rational Animal will transform the way you think about decision making. And along the way, you'll discover the intimate connections between ovulating strippers, Wall Street financiers, testosterone-crazed skateboarders, Steve Jobs, Elvis Presley, and you.

We share the capacity for knowledge with animals, but it is the nature and the scope of what we may rationally believe that makes us human. Yet what kind of beliefs do qualify as ‘rational’? This challenging and refreshingly innovative book addresses certain fundamental questions concerning rational legitimacy of some widely held beliefs and provides argument-based answers to such questions, while at the same time encouraging the reader to actively engage with the views put forward and form his/her own judgement. The book is typically discursive rather than simply informative, and introduces philosophy by doing it.

These 'philosophical' essays are related by a concern to develop and defend and Aristotelian view - that we are both essentially and entirely creatures of mortal flesh and blood, and uniquely rational animals.