Human ancestor? You know, evolution has to be the stupidest theory ever thought up.
Evolution is not even a theory: It is a patchwork quilt of unverifiable hypotheses. (Micro-evolution - for lack of a better term - is, on some level, valid, but macro-evolution is an unsubstantiated delusion.)
A theory can be tested, replicated, and can consistently produce verifiable extrapolations.
They cannot replicate it, and when they encounter something contrary to its prediction, they simply sew a new patch into the quilt.
As a science major, I heard the biology professor say over and over, “Given time and chance, we are confident that...” [fill in the blank with the latest anomaly that so-called evolution cannot explain, but they trust will someday explain]. Those words in quotes are, verbatim, the ones he used throughout all discussions of evolution.
Those are the words of faith, not science.
The special treatment that evolution has gotten paved the way for other, more recent, perversions of hard science that appeal to humanist, anti-Christian folks in the vaunted sciences, especially so-called global cooling... I mean, global warming... I mean, climate change.