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Yale Environment 360

Mountain Lions Are Keeping Deer Off the Road, Study Finds

A study in Washington state found that mountain lions reduce deer-vehicle collisions by keeping deer away from roads. Researchers observed that deer are 15% less likely to be near roads where mountain lions are active, leading to a 67% decrease in the likelihood of a deer-related traffic accident. The findings suggest that the presence of mountain lions can have a significant, positive impact on road safety. The research was published in the journal Current Biology.

What happened

A study in Washington state found that mountain lions scare deer away from roads, reducing the chance of deer-vehicle collisions.

Why it matters

This shows that predators can help reduce traffic accidents, offering a natural solution to a common safety problem.

Why it belongs here

It highlights how wildlife can contribute to human safety, encouraging a more balanced view of nature’s role in our lives.

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