On this ID The Future, host Casey Luskin concludes a two-part conversation with Dr. Uditha Jayatunga, a medical doctor and consultant in rehabilitation medicine in the UK, about the challenges that biological complexity poses to evolutionary theory. Their chat is a helpful refresher on some of the biggest challenges to a Darwinian explanation for the origin and development of life on Earth. In Part 2, Dr. Jayatunga provides more examples of purposeful complexity from the animal world and unpacks the power and complexity of the human brain as evidence for intelligent design. This is Part 2 of a two-part conversation.