The virgin forest,as the term suggests , is a kind of wooded area that exists for hundred thousand of yeas or millions of years and has not been previously disturbed or influnced by human activities . Virgin forests , found in lots of areas , contain a great variety of precious trees , from which we can learn more information about nature . They also contain nearly half of species in the world , including some exotic animals and plants . They are mystrrious , which are worth exploring.