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The UC Berkeley Police Department says that if you encounter one, the first thing you should do is try to avoid approaching the wild cat -- especially if it's feeding or with its young.
Most mountain lions will try to avoid confrontation, so give them a way to escape. Stay where you are and do not run.
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Watch the video in the player above for more tips from the UC Berkeley Police Department on what to do if you come face-to-face with one.
VIDEO: Mountain Lion caught on camera on Hillsborough porch