Conservation of grasslands in many countries have already taken a strong hold. Several national parks in the United States, Canada, Tanzania, and Kenya have already been set up to preserve the fading grasslands and their animals and plants. However, in places where countries are still developing, it is hard to persuade a starving farmer to give up his only source of survival. Often, park services will give people living in these areas a share in the profit made by the parks. This technique has been proven successful in many places where wildlife must be preserved.