If we evolved from monkeys, why are there still monkeys?

Resources

Claim CC150: If we are descended from apes, why are there still apes around?

Brief response in the Index to Creationist Claims in the TalkOrigins Archive.

Why Are There Still Monkeys?

Video by Jackson Wheat.

Why Are There Still Monkeys?

Video by Bill Ludlow.

If Humans Evolved from Apes, Why Do Apes Exist Today?

Article by creationist Tommy Mitchell in the 'Arguments to Avoid' section of the Answers in Genesis website.