Bear
The grizzly bear can deliver a swipe with an estimated force of 25,000 newtons—sufficient to decapitate a human or crush an automobile bonnet. Their bite force reaches 1,200 PSI, capable of puncturing a cast iron skillet. A charging bear achieves speeds of 56 kilometres per hour whilst weighing as much as a small motorcycle with its rider. This is the biological equivalent of being struck by a very angry refrigerator travelling at motorway speeds.
Wolverine
Logan's strength exists in the enhanced human range, allowing him to press approximately two tonnes under optimal conditions. Whilst this pales against the bear's raw mass advantage, the adamantium skeleton provides structural integrity that transforms every punch into something closer to being struck by a girder. His claws, extending from between his knuckles, can slice through virtually any known material. The bear has mass; Wolverine has the ability to make that mass irrelevant by cutting through it.
VERDICT
Pure physical power favours the ursine competitor. Eight hundred kilograms of bear simply outmasses one hundred kilograms of Canadian mutant. However, this category measures strength alone—not what one does with it. The bear wins the weightlifting competition; subsequent criteria will examine whether that matters.