Scientists have placed 5 species of prehumans into the genus Australopithecus, which means "southern" this
The oldest hominid species known, Australopithecus afarensis (southern ape ... 
called the new species Ardipithecus ramidus (ardi means ground or... [DOC] [TLE] Human Evolution - Fact Monster [PAR] But among scientists, the word has an entirely different meaning.