Entire species do not evolve into new species; new species tend to evolve as isolated offshoots of existing (parent) species. In some cases, newly evolved species can end up out-competing their parent (or sibling) species, driving them to extinction, but by no means in all cases.
http://friendsofdarwin.com/misc/faq/why-still-monkeys/
The actual relationship between the simians (i.e. the monkeys and apes, including us humans) turns out to be rather surprising: Modern-day ‘monkeys’ comprise two distinct groups: the Old World monkeys (living in Africa, Asia and Gibraltar), and the New World monkeys (living in Central and South America).
http://friendsofdarwin.com/misc/faq/why-still-monkeys/
How did humans evolve? Since the earliest hominid species diverged from the ancestor we share with modern African apes, 5 to 8 million years ago, there have been at least a dozen different species of these humanlike creatures. Many of these hominid species are close relatives, but not human ancestors.
http://www.pbs.org/wgbh/evolution/library/faq/cat02.html
This is a question often posed by creationists. It betrays a fundamental misunderstanding of evolutionary theory. To make matters worse, in this particular case, the entire premise of the question is false. Humans did not evolve from monkeys; humans and monkeys both evolved from an extinct common ancestor.
http://friendsofdarwin.com/misc/faq/why-still-monkeys/
The first debates about the nature of human evolution arose between Thomas Henry Huxley and Richard Owen. Huxley argued for human evolution from apes by illustrating many of the similarities and differences between humans and apes, and did so particularly in his 1863 book Evidence as to Man's Place in Nature.
https://en.wikipedia.org/wiki/Human_evolution
Genetic studies show that primates diverged from other mammals about 85 million years ago, in the Late Cretaceous period, and the earliest fossils appear in the Paleocene, around 55 million years ago.
https://en.wikipedia.org/wiki/Human_evolution
It betrays a fundamental misunderstanding of evolutionary theory. To make matters worse, in this particular case, the entire premise of the question is false. So let's knock it on the head right away: Humans did not evolve from monkeys; humans and monkeys both evolved from an extinct common ancestor.
http://friendsofdarwin.com/misc/faq/why-still-monkeys/
The topic typically focuses on the evolutionary history of the primates—in particular the genus Homo, and the emergence of Homo sapiens as a distinct species of the hominids (or great apes)—rather than studying the earlier history that led to the primates.
https://en.wikipedia.org/wiki/Human_evolution
Human evolution is the evolutionary process that led to the emergence of anatomically modern humans.
https://en.wikipedia.org/wiki/Human_evolution
Humans did not evolve from monkeys. Humans are more closely related to modern apes than to monkeys, but we didn't evolve from apes, either. Humans share a common ancestor with modern African apes, like gorillas and chimpanzees. 5 to 8 million years ago. Shortly thereafter, the species diverged into two separate lineages.
http://www.pbs.org/wgbh/evolution/library/faq/cat02.html
did monkeys evolve into humans
No, monkeys did not evolve into humans. No, monkeys are not evolved into humans.