1.   Each is derived, no doubt, from some ancient shared ancestor.

2.   And so far, all the microbes that have been revived are apparently ancient ancestors of harmless microbes that are known today.

3.   And now it seems likely that our ancient ancestor built shelters.

4.   Anthropologists call all the species and subspecies of these ancient ancestors hominids, to distinguish them from the ape lineage that includes chimpanzees.

5.   Because the level of dimorphism has implications for behavior, the knowledge can be the basis for making careful inferences about the social life of ancient ancestors.

6.   According to Vianello, the modern-day gondolier has little in common with his ancient ancestors.

7.   Coss says these differences may be due to the life patterns of ancient hominid ancestors.

8.   Dandelions may well have been among the foraged foods our ancient ancestors fell upon soon after winter snows melted.

9.   Giant totem poles stretched up through the atrium, and we relaxed in one of the leather chairs while I told Adam about totems and ancient ancestors.

10.   If our ancient human ancestors did kiss, they were coy about depicting it in their art and writing.