Analysis of rare hominin infant fossils excavated in southern Africa reveals unexpected cranial features which add weight to the hypothesis that Paranthropus robustus is more closely related to the ...

The human family tree is looking more and more like an unruly bush. Paleontologists have now uncovered the teeth of two different ancient human lineages at the same site in northeastern Ethiopia. The ...

Some adaptive breakthroughs in the history of life have resulted from natural selection for improved adaptation without the influence of environmental change. Other major evolutionary transitions have ...