+A **common ancestor** is a species or population from which two or more distinct lineages have descended. It represents a shared point on the [Tree of Life](/wiki/tree_of_life), illustrating the deep interconnectedness and shared [Evolution](/wiki/evolution) among all living beings.
+## See also
+- [LUCA](/wiki/luca)
+- [Speciation](/wiki/speciation)
+- [Phylogeny](/wiki/phylogeny)