n.someone from whom you are descended (but usually more remote than a grandparent)
同义词：ascendantascendentantecedentroot
Microsaurs as possible apodan ancestors
On the probability of ancestors in the fossil record
In line with our ancestors: Oct-4 and the mammalian germ.
Pigs for the ancestors: ritual in the ecology of a New Guinea people
Fast Algorithms for Finding Nearest Common Ancestors
On finding lowest common ancestors: Simplification and parallelization
On finding lowest common ancestors: Simplification and parallelization
On Finding Lowest Common Ancestors: Simplification and Parallelization
Major fungal lineages are derived from lichen symbiotic ancestors.
Data structures for weighted matching and nearest common ancestors with linking
