Sorry but kills are no grounds for determining aggressive behavior. Black bears are(regardless of what you have found in one article) more apt to attack than a grizzly, simply because they see you almost as an equal. Grizzlys know that you aren't ****, but could accidentally kill you(being capable of in some cases reaching 1700lbs will do that) while attempting to show you whos boss. Black bears are relentless once deciding to attack, playing dead only makes things worse since they are scavengers, and now see you as a food source(this is true). Black bears can be scared away by threatening behavior on your part; shouting, throwing rocks NEAR not at, and banging things together to scare it away. A grizzly would be encouraged to mess you up if you acted like this. Not aggressiveness simply confidence. Oh and kills compared to lightening? Everyone is susceptable to lightening, what percentage of the American/even global population ever comes within 100 yards of a bear in their life? I'm from northern Vermont, if you live near the ocean then you need to respect sharks- the guy up in saskatchewan needs to watch for brown bears, and all I need to worry about are black bears, moose, and people. Also, many of the guys on this board are *******s and hunt coyotes- did you know that THERE HAS NEVER BEEN A DOCUMENTED CASE OF A HEALTHY COYOTE KILLING A HUMAN IN NORTH AMERICA!!! Considering that they are no different from stray dogs and that people hunt them for 'sport', I hope that coyotes kill record starts going up.