In the second episode Richard Dawkins deals with some of the philosophical and social ramifications of the theory of evolution.
Dawkins starts out in Kenya, speaking with palaeontologist Richard Leakey. He then visits Christ is the Answer Ministries, Kenya's largest Pentecostal church, to interview Bishop Bonifes Adoyo. Adoyo has led the movement to press the National Museums of Kenya to sideline its collection of hominid bones pointing to man's evolution from ape to human. The collection includes the Turkana Boy discovered by Kamoya Kimeu, a member of a team led by Richard Leakey in 1984.
Dawkins discusses social darwinism and eugenics, explaining how these are not versions of natural selection, and that "Darwin has been wrongly tainted".
He then meets with evolutionary psychologist Steven Pinker to discuss how morals can be compatible with natural selection. He goes on to explaining sexual selection, with peafowls as an example. To find out whether sexual selection plays a role for altruism and kindness among humans, he visits women who are looking for sperm donors, as well as a sperm bank manager. Dawkins also explains kin selection and selfish genes.