This tension allows people to think critically and imaginatively, and to look beyond a particular culture's horizons. In the six million years since the human and chimpanzee lines first diverged on either side of Africa's Great Rift Valley, the behaviour and lifestyles of chimpanzees have barely changed. Human behaviour and lifestyles clearly have. Humans have learned to learn from previous generations, to improve upon their work, and to establish a momentum to human life and culture that has taken us from cave art to quantum physics - and to the unravelling of the genome. It is this capacity for constant innovation that distinguishes humans from all other animals.
All animals have an evolutionary past.
Only humans make history. To understand human freedom we need to understand not so much whether we are creatures of nature or nurture, but how, despite being shaped by both nature and nurture, we are also able to transcend both. What Science Can and Cannot Tell Us About Human Nature , Weidenfield and Nicolson 2000.