The Discover Secure Online Account Numbers program is once again set to be discontinued while the company reaffirms its $0 fraud liability policy on unauthorized charges.
If your referring the dawn of man, (first upright walking animals  with two legs and two arms), as caveman then the closest ancestor  would be the time relevant species of mâ¦onkey because without  knowing what the missing link between the two is we wouldn't know  that answer.
Our closest relatives are the Sauropsida (also known as Sauropsids) which include all living birds and reptiles. All of them are equally closely related to us. We mammals are the only surviving members of their sister clade, the Synapsid s. Together, we make up a larger clade called Amniote s. The nearest relatives of amniotes are the living amphibians.