Natural history is a difficult thing to conceptualize. You’ve got eons of undocumented progress, like the evolution of many species. Take, for example, the Australopithecus, an ancient great ape ...

Fifty years ago, scientists discovered a nearly complete fossilized skull and hundreds of pieces of bone of a 3.2-million-year-old female specimen of the genus Australopithecus afarensis, often ...

The skull, probably a male’s, is from a species called Australopithecus anamensis, as Haile-Selassie and his colleagues report in a pair of papers published Wednesday in the journal Nature. When ...

Ancient, fossilized teeth, uncovered during a decades-long archaeology project in northeastern Ethiopia, indicate that two different kinds of hominins, or human ancestors, lived in the same place ...

A new, detailed anatomical analysis concludes that the specimen does not fit definitively within any known species of the genus Australopithecus, opening the possibility that it represents a ...