Its members claim descent from a common ancestor.
The two are thought to have diverged from a common ancestor within the past million years.
Somehow everything, whether animated or static, seems related, as if descended from a common ancestor.
Each primate, she said, "has its own trajectory from a common ancestor which has diversified".
Asian and African elephants and mammoths diverged from a common ancestor about six million years ago.
And organisms, particularly bacteria, often borrow genes rather than inheriting them from a common ancestor.
When two species diverge from a common ancestor, their DNA becomes steadily more different.
Membership in a clan is traditionally defined in terms of descent from a common ancestor.
It is possible that both groups derived from a common ancestor.
In other words, the mitochondria in C.T.V.T. cells do not all descend from a common ancestor.
Cognates are verbal cousins, like the Greek podos and the English foot, both descended from a common ancestor.
