An international team of scientists have discovered a 4.1 million year old fossil in eastern Ethiopia that fill a missing gap in human evolution. The fossil is Au. anamensis, which is an early form of the Australopithecus genus, thought to be an ancestor of modern humans.
The discovery closes the gap between the fully blown Australpithecines and earlier forms called Ardipithecus.
Some might remember "Lucy", a Australpithecine find, relitively intact, from 3.18 million years ago.
Scientists believe brain size started increasing, relatively quickly, about 2 million years ago. So although these primates walked upright, as far as science knows right now, they weren't intellegent.
Habitat
