A deeper understanding of how DNA changes over generations helps scientists learn why people differ and how diseases develop. Until recently, many fast-changing parts of the human genome remained ...

Neanderthals and humans mated millennia ago, and their legacy lives on in us today. Here's how. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

A 2015 report published by a private genomics testing company found that 2% of 345 hot dogs tested contained traces of human DNA. However, it was unclear whether that report was a peer-reviewed study, ...