Polar bear.
It depends on where the fight is taking place. The majestic narwhal has the disadvantage on land and the mighty polar bear under water.
Of course a narwhal would win.
polar bear
Polar bear, they are known as the most carnivorous bear.
It's possible, but very unlikely. The narwhal would have to be in a position to drive it's tusk into a vital spot on the bear, and this scenario just doesn't seem tenable.
A polar bear would totally lose because a rhino would charge at the polar bear and knock it with its horn.
It depends on the health and size of the two animals, and the position of where are they attacking. If the ox struck the polar bear with its head or knocked its chest, the ox would win the fight. If the polar bear swiped and clawed the ox to death, the ox would be a meal of the polar bear.
the shear size and strength of the killer whale would own the polar bear
Narwhals. They are narwhals!
If a pack of wolves can kill a grizzly then it can kill a polar bear!!!
On land the bear. In the water the crocodile .
I don't know if such a fight has ever happened or ever will, but my guess is that the polar bear would win. Both animals are very strong, but the polar bear has bigger claws and teeth.