Studies have found Neandertal DNA in people living in - and descended from - populations in Europe, Asia, and, most recently, Africa. So, in a way, these ancient relatives of ours are somehow both here and gone. We know we shared the planet with them in the not-so-distant past… But what happened to them? Eons: Mysteries of Deep Time is produced by Complexly for PBS. © 2022 PBS. All rights reserved.