It may seem counterintuitive, but wolves can actually help the environment. <br /> <br />As Sustainable Man explains, when wolves were unnaturally removed from Yellow Stone park, the environment became heavily unbalanced. The deer had no natural predators, and, as a result, over ate the greenery. The ended up hurting the entire ecosystem. <br /> <br />When the wolves were recently reintroduced, nature became balanced again. The wolves had such a positive chain reaction effect, their presence ended up changing the rivers for the better.
