1.   Likewise, our early ancestors most probably sifted out the useful plants by scent, sight and intuition.

2.   They were slanted somehow, and he recollected pictures he had seen of the early ancestors of the Manchu.

3.   Archeologists are beginning to think they have been underestimating the early Stone Age ancestors of modern human beings.

4.   But the scientists already know enough, they say, to be excited about what the fossils may tell them concerning the anatomy and evolution of early human ancestors.

5.   Fossils of the early human ancestors themselves have yet to be identified in the tool-bearing sediments of the Ethiopian site.

6.   He also has shown tool-making ability -- hitting two stones together to make primitive tools the way early human ancestors did, Savage- Rumbaugh says.

7.   Last year, new evidence showed that different early human ancestors existed simultaneously millions of years ago in Africa and in Asia.

8.   Nobody knows why our early ancestors decided to get off their knuckles and stand upright.

9.   Other paleontologists contend that when early human ancestors began walking upright, their hands were freed for the manipulation and use of tools.

10.   Perhaps, anthropologists say, early ancestors were similarly restricted.