2009 Science News of the Year: Humans

An artist's illustration shows how a female Ardipithecus may have looked. An analysis of Ardi's bones, uncovered from 1992 through 1997, was released this year. Credit: J.H. Matternes
An artist’s illustration shows how a female Ardipithecus may have looked. An analysis of Ardi’s bones, uncovered from 1992 through 1997, was released this year. Credit: J.H. Matternes
Ardi puts new spin on hominid evolution A 4.4-million-year-old partial female skeleton discovered in Africa, along with fossils from at least 36 of her comrades, provide the first comprehensive look at any ancient hominid species older than Lucy ( SN: 10/24/09, p.