For the pure theory of evolution to work, using the idea humans that descended from apes, wouldn't the apes be therefore extinct?
No. You are mistakenly assuming that humans are descended from living apes. In fact, humans and modern apes are both descended from an earlier species of ape.
If a population is separated into two groups, living in different environments, each group will evolve different characteristics and (eventually) not be able to mate with the other group. For instance Caucasians and Asians separated from Negroes about 70,000 years ago. Each group has evolved many features different from the other though they can still interbreed. Humans and [bleep] separated much earlier, about 7 million years ago. They have greater differences and cannot interbreed.
Incidentally humans are more closely related to [bleep] than [bleep] are to gorillas.
Don't blame me. I voted for Trump.
Democrats would burn this country to the ground, if they could rule over the ashes.
