Abstract
A new study by evolutionary biologists Robert Dorit (Yale), Hiroshi Akashi (University of Chicago), and Walter Gilbert (Harvard) flies in the face of prevailing origin-of-man scenarios.(1-2) In an attempt to trace the ancestry of humans, these researchers looked for genetic differences in the Y chromosome of 38 men living in different parts of the world and having different ethnic backgrounds. Since only males possess the Y chromosome, such a study offers a narrowly focused look at genetic material as it has developed over time and distance.