If man evolved from monkeys and apes, why do we still have monkeys and apes?
My friend asked me this and I didn't really know to say...
(post your answers below)
Heres a little explanation though which should clear up your question.. Its a little long, but trust me, its worth it.
Humans *are* apes, descended from earlier apes. Our closest relatives are chimpanzees, and the most recent common ancestor of both humans and chimpanzees was approximately 6 million years ago.
Suppose that circumstances arise which cause a group to become isolated from other chimpanzees. This could be as a result of an accident of geography (e.g. an impassable river) or breeding preference or simply great distance.
This is what biologists define as speciation - i.e. the population has forever split into two distinct groups.
Assuming that both groups continue to survive, it is again *inevitable* that they will diverge genetically - There is no possible way that both groups, isolated and independent from each other, can change in exactly the same ways, and the longer they continue to breed, the more different they will become. Over millions of years, given that the rate of genetic change via mutation tends to remain fairly constant, the two groups will become as distinct as today's chimpanzees and humans are from each other, and from their most recent common ancestor.
All this is based on what we *know* is true - it's not supposition or guesswork, and remember it's not just possible, it absolutely *has* to happen, because there is no mechanism in biology to make reproduction a 100% perfect, flawless process.
In short, chimps/monkeys/apes were once together, then through natural events, split into different locations. Each location had different climates, food sources, resources, etc. Each group of monkeys adapted to the environment and evolved. A certain group of these "Groups" evolved into what we are today.
Hope that answers your question bro.