anamensis and its descendant species, the well-known A. afarensis
, coexisted for a period of at least 100,000 years.
Caption: Same time, same place Australopithecus deyiremeda is one of several hominid species that may have lived in East and Central Africa at the same time as Lucy's species, A. afarensis
. SOURCE: F.
had an ape-like face, with protruding jaws with large back teeth.
For the first time, Midwestern University Professor David Green and Curator of Anthropology at the California Academy of Sciences, Zeresenay Alemseged, have thoroughly examined the two complete shoulder blades of the fossil "Selam," an exceptionally well-preserved skeleton of an A. afarensis
child from Dikika, Ethiopia, discovered in 2000 by Dr.
were early humans - they were bipeds and walked on land - but scientists still debate whether Lucy and her kind spent at least some of their time in trees as well.
Is it really surprising that A. afarensis
could climb trees ("Fossil puts Lucy's kind up a tree" SN: 12/1/12, p.
The researchers concluded that the important shift in early hominid lifestyle happened around the time when A. afarensis
The insight into Lucy's travel habits came from an A. afarensis
child that lived in Ethiopia 3.3 million years ago.
Emma further reveals that A. afarensis
, which lives between 4 and 3 million years ago, long before modern humans, seemed to have short ring finger, which hints that they were faithful to single mates.
lived in East Africa 3 million to 4 million years ago.
Halle-Selassie's discovery may come from an Ardipithecus lineage that survived near A. afarensis
for hundreds of thousands of years before dying out, notes anthropologist C.
A bone from the fourth toe--the first such A. afarensis
fossil unearthed--provides crucial evidence that bends in this hominid's feet supported and cushioned a two-legged stride, the scientists report in the Feb.
Big Man's anatomy challenges an influential view, largely based on analyses of Lucy's remains, that A. afarensis
had a chimplike build suited to frequent tree climbing.
The nearly complete skeleton of an A. afarensis
child was retrieved from another Ethiopian site in 2000 and described in 2006 after years of fossil preparation (SN: 9/23/06, p.