SALT LAKE CITY, May 27, 2010 – Ardipithecus ramidus – a purported human ancestor that was dubbed Science magazine's 2009 "Breakthrough of the Year" – is coming under fire from scientists who say there is scant evidence for her discoverers' claims that there were dense woodlands at the African site where the creature lived 4.4 million years ago.
Instead, "there is abundant evidence for open savanna habitats," says University of Utah geochemist Thure Cerling, lead author of a critique published as a "technical comment" in the Friday, May 28 issue of Science.