Listen in as Stan Ambrose talks with Will AM580 Radio hosts about the discovery and analysis of a new, early hominid species called Ardipithecus ramidus. More recently, Stan participated in another new study that provides “incontrovertible evidence” that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter (post by C. Fennell).