A timber wolf could survive, if it avoided the bear's sledgehammer blows. But it could not defeat an adult bear in a fight, it's too small and could not do serious injury to the bear.
No a brown bear can't survive with no adaptation!
The brown bear, it can hibernate.
Polar bear, they are known as the most carnivorous bear.
Black bears usually flee from the bigger, stronger brown bear.
by obtaining bleach
To answer this question, you have to consider which is the better fighter or the most likely to survive. The best fighter is the grizzly bear. It even has an extra back muscle on its back that helps it to dig better, to run faster, and to fight better, but the black bear is going to outlast the grizzly because it is stealthier, and it avoids humans, so that it does not get shot.
A tiger, as they are bigger and they can take down a brown bear, whilst a lion is smaller and can't kill a brown bear.
The brown bear because it would stand up and claw the three lions to death by swiping them with its paws.
Hard to say in a real fight, both are large powerful bears, but in interactions between the two species, brown/grizzlies seem to dominate the polar bears.
A brown bear would totally eat a chimpanzee, and in fact it could take down a lot at one time.
A lion would beat a brown bear, grizzly bear, and black bear. But for a polar bear, it would be a draw. Brown bear. Brown bears were put to fights with lions before, and the brown bear simply killed the lion.
The brown bear.