Introduction to a special series: What Makes Man Human

One of the most pressing and timely scientific questions concerns the evolution of man. In 1970, Karl Pribram delivered the James Arthur Lecture at the American Museum of Natural History in New York City. His lecture, "What Makes Man Human," was one of the most eloquent and brilliant syntheses of this problem ever made. The Journal is proud to publish this Lecture for the first time in an open access format that will make its insights available widely to a new generation of students and investigators. Accompanying the lecture is a new commentary written by Prof. Pribram, and four additional commentaries from prominent investigators who were invited to consider the question from their own perspectives. Together, these articles provide a scholarly, yet accessible, snapshot of different approaches to the study of human evolution in 2006.