huh?
You're question was if mankind evolved from apes, how come there are still apes. The answer is because not all apes evolved. Whether you agree with answer or not, it's the answer that scientists have answered repeatedly.
The analogy I attempted to use was that if a woman changed her maiden name, when she gets married, it does not mean that all people with her maiden name change their name. Similarly, when one (or a few) apes started to evolve towards humans, not all apes did.
(Strictly speaking, humans did not evolve from modern apes. Rather modern apes and humans have a common ancestor, but that's a different question.)