Question: 10 reasons why we need wolves?
Answer: Reason #1: Without wolves and other large predators, ecosystems can go haywire. ... 
Reason #2: Scavengers thrive when wolves are around. ... 
Reason #3: Wolf kills are also good for the soil. ... 
Reason #4: Wolf kills feed more animals than hunting by humans, since wolves scatter their carrion over the landscape.