Answer: Differences between the two living chimp species (the common chimpanzee
and the bonobo) show that chimps have evolved substantially since they diverged from humans.
Furthermore, after the recent demonstration of two distinct Rhadinovirus lineages within the common chimpanzees
(7), and based on the known molecular evolution of herpesviruses, our findings of a novel RV2 virus in gibbon may suggest the possible existence of a novel [gamma]-2-herpesvirus in humans, belonging to the RV2 genogroup.
The closest parallel today to the pattern of dental development of these ancient, two-legged creatures is not in people but in common chimpanzees
The Stony Brook scientist examined lower-thumb bones of 12 pygmy chimpanzees, 49 common chimpanzees
, and 41 modern humans, as well as single thumb fossils from Australopithecus afarensis (dating to about 3 million years ago), Paranthropus robustus (found at a 1.
Eckhardt and his colleagues found that the Ouranopithecus fossil shares many dental and cranial features with skulls from 280 common chimpanzees
housed in a Frankfurt, Germany colon.