For decades, the dominant theory in human evolution suggested that modern humans descended from a single ancestral lineage in Africa. However, groundbreaking new research from the University of ...

Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining ...

Fossils unearthed in Ethiopia are reshaping our view of human evolution. Instead of a straight march from ape-like ancestors to modern humans, researchers now see a tangled, branching tree with ...