Fossil Ardi reveals the first steps of the human race
Ardi evolved from the common ancestor we share with chimpanzees and was equally at home walking on the ground and swinging through the trees
The remains of a woman who lived and died at the dawn of humanity have been uncovered in
Ethiopia, giving the clearest picture yet of the origin of our species.
The partial skeleton belonged to a female who walked on two legs but was adept at climbing trees and moving through the forest canopy some 4.4m years ago.
The woman, named Ardi by the researchers who worked on her, belongs to a new species
Ardipithecus ramidus and may be the earliest human ancestor ever discovered that was capable of walking upright.
The finding sheds light on a critical but unknown period of
evolution at the root of the human family tree, shortly after our ancestors split from chimpanzees more than six million years ago.
Fossil hunters first glimpsed the new species in 1992 when a tooth belonging to Ardipithecus was spotted among pebbles in the desert near Aramis. Over the next two years, the researchers scoured the area on hands and knees and slowly uncovered pieces of bone from the hand, ankle and lower jaw, and finally a crushed skull.
A total of 47 researchers then spent a further 15 years removing, preparing and studying each of the fragments ahead of the publication tomorrow of an in-depth description of the species in 11 papers in the
US journal Science......................................
Fossil Ardi illuminates the dawn of humanity | Science | guardian.co.uk
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