The first video shows a grizzly bear mauling one of two moose calves on the lakeside as the calf’s mother watches nervously from the water. Be warned: It’s graphic. The second video ...

Now towering above the grizzly in the water, the moose turns around, flanked by its calves, video shows. She stares down the bear for a moment, lets out a low growl and then charges, her long ...