i did a report on this in biology
its not certain if humans evolved from apes , however there is 98% DNA match between humans and chimps
the big question that might hinder one from saying evolution took place is because evolution usually takes place when a species is not as adapted to its environment and the evolution must occur to ensure survival, if there was really a flaw in the genetic design in apes then why would they still exist today? Apes dont seem to have any problems surviving in a variety of places
the only way i can think of humans evolving from apes would be if there was some sort of genetic divergence, mutation or land separation between a group of apes
I dont know if you guys are familiar with Darwins study of the finches on the Gallapagos (sp?) islands but when on separate land forms the finches beaks varied in size relating to the seeds it ate on that particular island.
Perhaps a group of apes were separated by a landform (ex. body of water, mountain range) and when one group stayed ape and didnt change genetically, the other group did change either by adapting to different environment or just by passing a genetic mutation.[/QUOTE
it has to be certian because they share most of our DNA.