I think this usually comes up because of the "experts" recommendations on what to do if you are attacked by a bear.
The recommendation for a grizzly attack is to play dead. Because the bear is probably attacking you to defend cubs, food, space, etc. If you play dead the bear may decide you are no longer a threat.
For a black bear attack the recommendation is to fight back because it is probably a predatory attack and playing dead doesn't help that.
I'm not saying these are right or wrong just relaying what I've heard.
While initial reaction may have been to defend cubs or carcass pile, bears, both grizz and black, are opportunists, that will devour humans, as recent reports in Wyoming have illustrated.
