Monkeys in an effort to prevent conflict with humans and slow population growth. During that time, officials also sterilized twenty female macaques.
According to Anderson, the most effective strategy for completely eliminating them would be to remove half of the adults and those who are close to becoming adults every two years for at least 16 years. However, many locals oppose such a move.

Around the year 2012, when the public learned that the monkeys were being taken from the park and sold, both sterilization and removal came to an abrupt end. At that point, to the dismay of animal rights groups, trappers who had obtained permits from the state had delivered more than 1,000 monkeys to biomedical researchers. 700 of the creatures were caught and sold by one trapper alone.