V Descentu mužov Darwin príznaky mnohých zistených s jeho notorious Origin of Species: finding in traits and instincts animals the origins of mental abilities of the human, language, of our social structures and our moral capacities, he attempts To ukazuje, že nie je jasné, čo sa líši medzi zvieratami a ľuďmi. Most importantly, he accounts for what Victorians called 'races' mankind by means of what he calls sexual selection. Táto kniha predstavuje úplné rozširovanie darwinových myšlienok o sexualnom výbere, vrátane jeho vedomostí, že veľa dôležitých vlastností ľudských zvierat a zvierat sa spája s response k competition for mates. This was a controversial work. Yet Darwin tried hard to avoid being branded ako radical revolutionary. He steeped in Victorian sensibilities regarding gender and cultural differences: he sees human civilization as move from barbarous savagers to modern gentlefolk, and women as more emotional and less intellectual the man, thus providing a biological basis for the social assumptions day. The Descent of Man hral veľkú úlohu v emergencii of social Darwinism. Táto kompletná verzia prvých úprav dáva moderný reader unparalleled opportunity k orientácii directly s Darwin's proposals, launched v stredu pokračujúcej controversy cez On Origin of Species. Janet Browne je author of prize-winning biography, Charles Darwin: Vojaci a Charles Darwin: The Power of Place.