1.   After all, these were the most primitive people of all, our earliest ancestors.

2.   And yet, one aspect of the lives of our earliest ancestors still astonishes us.

3.   Marija Gimbutas Our earliest ancestors were nomads, travelers in small groups who followed the seasonal plants and the herds of reindeer.

4.   An alternative theory, known as regional continuity, holds that the earliest human ancestors arose in Africa and spread around the world more than a million years ago.

5.   A newly discovered trove of African fossils sheds light on our earliest ancestors.

6.   Fossils of what may be the earliest known ancestor of the human family have been unearthed in Kenya.

7.   He wanted -- needed -- to find the feet, legs, knees and pelvic bones of what is thought to be the earliest known human ancestor.

8.   How did our earliest ancestors think?

9.   I suppose the earliest ancestors of us all must once have lived like that.

10.   Soon thereafter the Leakeys discovered the remains of Homo habilis, a toolmaking handyman that was the earliest known ancestor of modern humans.