At 2000 meters the natural, undisturbed forest begins to be seen.

It was primary forest, undisturbed by the hand of man.

It is more abundant in second growth than in undisturbed forest.

In undisturbed virgin forest they may use massive trees emerging from and above the canopy.

The park was an undisturbed virgin forest till the 1930s.

It has been found at higher densities in secondary forest rather than undisturbed forest.

Occasionally troops as large as 500 have been seen in undisturbed forests.

There are people in the service, he said, who "recognize the value of an undisturbed forest."

It generally lives in undisturbed forest, feeding in the canopy on fruits.

However, Titis do not seem to be aware of the difference between a disturbed and undisturbed forest.