Wolves balance the ecosystems in the wild and its not just keeping deer populations down. Grazing animals without a predator can excessively eliminate plant growth and tree seedlings. That can increase erosion and make less food for wildlife in general. Tree seedlings have the potential to become trees and we need more of them. Benefits are shade, seeds, habitat, erosion prevention and oxygen. Excessive grazing of prairie lands also eliminates food and habitat of birds and small critters. An ecosystem works together. You take out one part and it's imbalanced. Don't take wolves off the list.