The article was written in 2007 and it says: “Recent research using DNA analysis answered this question about two years ago. Today’s human population is descended from twice as many women as men.” So the research, if it exists, was done in 2005, plus or minus one year.
The article was written in 2007 and it says: “Recent research using DNA analysis answered this question about two years ago. Today’s human population is descended from twice as many women as men.” So the research, if it exists, was done in 2005, plus or minus one year.
Indeed, the right citation is Wilder et al 2004.