There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
Vinay, to start with, no one ever said that the videos' are fake or doctored. Actually, nice videos'. A grizzly is an omnivore, and therefore only a part-time predator. I notice on the video that both the boar and the bears are feeding evidently on some form of vegetation. If you are wondering why the bear does not attack the wild boar; such an attack would be foolish. Perhaps the bear could kill the wild boar and maybe not. The wild hog appears bigger and heavier than the grizzly. It would therefore be a savage battle and, even should the bear win, he would not likely do so without injury. Grizzly bears are highly intelligent animals and not normally prone to choose an unnecessary fight. However, you will notice that at one point in the video, the bear moves towards the wild boar and the boar avoids the bear.
As for eating insects; yes both black bears and grizzlies supplement their omnivore diet of meat, vegetation, and fish with an occasional feast of insects. However, insects make up only a very small percentage of a grizzly's food resources.