Those early humans fed on soft material such as fruits. Their teeth did not have a thick enamel.

Unless biology is geared toward an evolution perspective, we are going to a dead-end. Our science courses have to be geared toward evolution ...[and] science education has to be religion-free.

Dating to just over four million years ago, the fossils represent unambiguous evidence for human evolution.

All (three species) were able to be found in one place, proving that evolution is a fact. Successive records that we see here prove that the Afar region is the origin of human kind.

It is the only place in the world where the three phases of evolution could be documented and proved.

We have proved that one (species) is transforming into the other, so this evidence is important to show that there is human evolution... that human evolution is a fact and not a hypothesis.