Researchers have used distinct markers from human subpopulations to trace back to our common African root in a giant human "tree ... Eurasia contributed to the evolution of anatomically modern ...

And, while other branches of the human evolutionary tree are vigorously debated in ... Cladogram: a branching diagram that represents only phylogenetic relationships among organisms (i.e., it ...

It suggests that human evolution is much more complicated than the simple tree diagram often used to describe it. Researchers found that the two populations split 1.5 million years ago ...