The Genealogy Project is using DNA research to map the movements of humans 45,000 years ago -
One of the 350,000 members of the public tested so far was Chris Darwin, a tour guide and adventurer who lives in the Blue Mountains, west of Sydney.
Because genetic information is passed from father to son via the Y chromosome, Mr Darwin would share a large part of his genetic data with his great-great grandfather, who wrote The Origin of Species.
Tests on Mr Darwin's DNA, collected from a swab of his saliva, showed that his ancestors, and those of Darwin himself, were among the first wave of modern humans to leave Africa for the Middle East about 45,000 years ago.
From there, they travelled into Europe, surviving the Ice Age by migrating south to Spain, before moving north to England about 12,000 years ago. . .
Chris Darwin thinks the test shows there are people with "a thirst for discovery". Something in their genes?