I just recently started using a trail camera and the first time I put it out, it got ripped down by a bear. Surprisingly, he didn't tear it up. Just knocked it down on the ground. I got a pretty funny pic of him leaning over the camera sniffing it. I'll have to dig the pic up.

I once read that bears are attracted to the smell of the film on 35mm style camera's. Don't know how true it is, just what i've read. There are a number of ways to protect your camera from such things. They make cases made from steal that will withstand a bear chewing on it. I also seen a guy who went as far as to weld nails all over the metal case. Kinda looked medieval.

Good luck with your camera, they are almost as fun as hunting.