Geneticists have uncovered a faint but persistent signal in modern DNA that points to a vanished branch of humanity, a “ghost ...

Deep inside a handful of caves, scientists are pulling genetic secrets out of bones, teeth and even the surrounding dirt, and ...

A California murder went unsolved for nearly 30 years, until one DNA match cracked the decades-old case. You can also get more behind-the-scenes of each week's episode by listening to "20/20: The ...

DNA has led to the arrest of a man who the Collier County Sheriff's Office says broke into a woman's home and sexually battered her at knifepoint more than 21 years ago. "This was a heinous crime, and ...