Phys.org - 12/03/12
Researchers have identified the moment in history when the genes that enabled us to think and reason evolved. This point 500 million years ago provided our ability to learn complex skills, analyse situations and have flexibility in the way in which we think.
Professor Seth Grant, of the University of Edinburgh, who led the research, said: "One of the greatest scientific problems is to explain how intelligence and complex behaviours arose during evolution."
To read the rest of this story, visit Phys.org.
