The human story begins in Africa, but for many African Americans searching for their ancestral roots, finding where their family story begins on that great continent is nearly impossible, because...

Pinworms–small worms that infect the intestines–are the most common worm infection in the United States. Although all people are over 99.9% genetically identical, the small amount of diversity that does...

There are many examples around the world of two distinct ethnic groups living side by side. Sometimes these groups co-exist peacefully. Other times they do not. Often two groups’ differences...

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...

If you take two members of the human race at random and ask how much their genomes differ, you’ll get a surprising answer: they’re almost identical. On average, for every...