You have to clarify if they are fighting on land or in the water. Once you determine that the outcome is obvious.
the shear size and strength of the killer whale would own the polar bear
A killer whale, easily. They are three times the size of a Walrus and a Walrus has no teeth.
That would be the polar bear.
The polar bear would because as the polar bear is the biggest land predator on earth
it attacks the whale while its near the shore and would use its claws to blind it
Grizzly bear, by far.
It's likely that the polar bear might win the fight. 2 black bears would first go for the grizzly bear and work together to swat that thing to death, but a grizzly bear would also fight back. If the grizzly bear did this, it might have a chance to win, but it could get seriously hurt. Then, the polar bear could kill the injure grizzly bear by biting that thing on the throat.
The grizzly bear would probably tear you apart.
The grizzly bear would probably win
The tiger any day! A tiger is much more agile and aggressive. not to mention that tigers are the sickest animals around. and hop is wrong
They rarely have to as they almost never meet each other and they usually prey on different animals, though if a killer whale thought it could eat a polar bear and attacked, the bear would probably head towards dry land(not ice floes!) and wait there.
Pat Sargent has written: 'Bobcat' 'Topper, Son of Barney (Barney the Bear Killer)' 'Timber Wolf' 'Grizzly (Barney the Bear Killer)' 'Cougar Holler (Barney the Bear Killer Series)' 'The timber wolf (Barney the Bear Killer)' 'Cougar Holler (Sargent, Pat, Barney the Bear Killer, 4.)' 'The Jaguar (Barney the Bear Killer)'