When scientific research is published, the authors often confess that they wish they’d collected more data. Critical reviews of research studies often say the same thing. Indeed, if there’s anything...

By Chris Gignoux and Mike Macpherson It should be no surprise that in general, we are more genetically similar to our neighbors than to people living far away. The reason...

Just when you thought everything was starting to make sense — new genetic research on the peopling of the Americas throws us a curve. There has been plenty of research...