Gray wolves scare deer from roads, reducing dangerous collisions
In Wisconsin counties with wolves, deer-car accidents dropped, saving millions of dollars
![gray wolf](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/05/052121_JL_wolf_feat.jpg?fit=1030%2C580&ssl=1)
Wisconsin counties where gray wolves (Canis lupus) moved back in experienced a substantial decrease in deer-vehicle collisions, leading to millions in savings.
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