Researchers in South Africa have unveiled what they call "by far the most complete skeleton of a human ancestor older than 1.5 million years ever found." Its discovery is expected to help researchers better understand the human ancestor's appearance and movement. (Themba Hadebe/Associated Press)The researchers say it has taken 20 years to excavate, clean, reconstruct and analyze the fragile skeleton. Professor Ron Clarke and his assistants found the fossils and spent years to excavate, clean, analyze and reconstruct the skeleton. The discovery of the new Australopithecus fossil is expected to help researchers better understand the human ancestor's appearance and movement.

Source: CBC News December 06, 2017 15:28 UTC