The oldest Oldowan tool sites, from around 2.6 million years ago, have previously been
confined to Ethiopia's Afar Triangle. We describe sites at Nyayanga, Kenya, dated to 3.032 …

Africa's fossil record of late Cenozoic mammals documents considerable ecological and
evolutionary changes through time. Here, we synthesize those changes in the context of the …

Paleoanthropologists have long speculated about the role of environmental change in
sha** human evolution in Africa. In recent years, drill cores of late Neogene lacustrine …

The manufacture of flaked stone artifacts represents a major milestone in the technology of
the human lineage. Although the earliest production of primitive stone tools, predating the …

It has recently become clear that several human lineages coexisted with Homo sapiens
during the late Middle and Late Pleistocene. Here, we report an archaic human fossil that …

The habitual consumption of large-animal resources (eg, similar sized or larger than the
consumer) separates human and nonhuman primate behavior. Flaked stone tool use …

The past two million years of eastern African climate variability is currently poorly
constrained, despite interest in understanding its assumed role in early human evolution …

It has long been proposed that pre-modern hominin impacts drove extinctions and shaped
the evolutionary history of Africa's exceptionally diverse large mammal communities, but this …

In celebration of the 50th anniversary of the Journal of Human Evolution, we re-evaluate the
fossil record for early Homo (principally Homo erectus, Homo habilis, and Homo rudolfensis) …

The influence of climate change on hominin evolution is much debated. Two issues hamper
our understanding of this process: the limited hominin fossil record, and incomplete …