A bear will win for sure when the bear weighs from 475-1500 pounds depending on the species, and is very large compared to a panther. One swipe with its paws from the bear will immediately knock down a panther fatally. If the panther attempted to bite the bear, the bear will fight back and most likely win.
Chat with our AI personalities
I don't usually get into these animal fight debates but this really is a dumb question. I'll answer it with one of my own. How could a 500 pound cat possibly contend with an enormous 1200 or 1500 lb bear? A large bear has far more power than any cat and has a huge weight and size advantage. Anyone who actually thinks a lion could take a grizzly is a few bricks shy of a load.
Siberian and Bengal tigers sometimes kill bears, but a large brown bear would be too much. Draw.
The tiger is a species of panther and belongs to the panthera genus, as do the jaguars, leopards and lions. Which panther were you referring to?