An ancient human relative was able to walk the ground on two legs and use their upper limbs to climb and swing like apes, according to a new study of 2 million-year-old vertebrae fossils.

Left: silhouette of Australopithecus sediba highlighting the bones discovered in the MH2 specimen.Middle: a skeletal silhouette, also showing the known bones. Right: an enlarged photo of the newly ...

The recovery of new lumbar vertebrae from the lower back of a single individual of the human relative, Australopithecus sediba, and portions of other vertebrae of the same female from Malapa ...

The discovery of new Australopithecus sediba fossils mean we can now reconstruct most of the spine of one individual, and strengthen the case that the species was bipedal at least some of the time ...