It's something widely known - locally - by biologists, law enforcement, and hunters, in an area infested with Grizzlies. It's been caused by the introduction of the (wrong) wolves. (Long story). ... I can't imagine why they haven't wanted to make it national news ...
Oh, is this that thing about how the wolves that were reintroduced onto National Park lands, from Canada if I remember correctly, are more robust and larger than the wolves which were originally here? So the bears have had to learn to pack hunt to complete? That's incredible!
Yes.
Phillip - I have to politely disagree with the conclusion of firearm/caliber choice in the original video. My personal experience - has seen what a 9mm and 45 acp won't do to a bear. I consider the 44 mag, with factory premium rounds, to be a "bear minimum pea-shooter" against Griz.
When a bear charges, your only target is the top of their rolling head. Their skull is so thick that bullets tend to "bounce off", or be deflected. It takes a lot of power to puncture the skull from that angle. A slow moving, very heavy bullet has the best chance of success.
Of course - people have successfully killed large Grizzlies with 22 LR's fired into the side of their head ...
https://www.ammoland.com/2017/06/bella-twin-the-22-used-to-take-the-1953-world-record-grizzly-and-more/However - in today's climate, shooting a Griz in the side of the head negates your self defense argument - and therefore gets you (up to) a federal felony, 10 yrs prison, and/or $25k+ in fines - or some such. Ask the guy in Idaho that shot a Griz in his backyard that was about to attack his daughter - how that worked out for him.
So, when a bear charges - drop down to 1 knee (while drawing) to change your target angle - and shoot under their chin - with a really big ... something-or-other ... imho.