A Christian and an agnostic debate about the origins of morality. Is morality grounded in God or in humanity? Are we making it up as we go along?

Here, I want to explain the perspective of atheist and evolutionary biologist, Richard Dawkins, who defends a Darwinian understanding of the origins of human morality. He draws some valid parallels between animals and humans but fails to recognize how humans can make distinct moral choices that animals cannot.