Does this sound accurate?

[evointrigued]

http://www.foxnews.com/story/0,2933,292572,00.html

[Darby]

It's no big thing - evolution tends to happen in reproductively isolated communities, and differences in community ecosystems can preserve a successful form in one while leading to changes in the other. There doesn't have to be a "replacement."

Right now, chimpanzees that strongly resemble our distant ancestors (and whom we share a chimpy ancestor with) still exist while we're here - that doesn't change the relationship.