How the skull of humanity`s oldest known ancestor is changing our understanding of evolution
(PHYSorg.com Archaeology & Fossils)

The recent discovery of a 3.8m-year-old cranium (skull without the lower jaw) is the hottest topic of conversation among palaeoanthropologists right now. But fossils are found all the time, so why is the cranium of this small, old man so important? It turns out the discovery is changing our view of how early hominin species evolved-and how they led to humans. To understand how, let`s start at the beginning.