The grizzly bear, with ease. A grizzly is enormous. Much bigger and stronger than a gorilla and even more so than a jaguar. They can literally knock the head off an elk with one blow!
Bears usually drive off pumas, and jaguars rarely take spectacled bears. The thing is, both species, but especially the bear, have a great deal of size difference depending on the population and gender. ... However, if the jaguar has cover, and/or the bear is a female or immature male, the jaguar can kill them.
The unusual find, Bugbee suggests, marks the first known instance of a jaguar preying on a black bear. Such an event could only occur in the American Southwest or northern Mexico, where the stomping grounds of the mainly temperate black bear and the mainly tropical/subtropical jaguar overlap.
With its huge size and power, the lion would overwhelm and beat the jaguar. That doesn't mean the jaguar can't get away if it decides to retreat early in the fight. The jaguar is much faster than the lion, but it will still lose the fight.
Being close to the bear means being close to the mouth full of gnashing teeth and at least five claws ready to tear the gorilla apart with one swipe. With the bear's massive body, superior muscle, surprising speed and evolutionary armory, there really isn't any way a gorilla wins the fight.
Tigers will eat any large prey they can catch and kill, including bears. Most often, the bears eaten by large tigers are young, female Himalayan bears. Even so, a young bear can put up a fight, so the tiger must take extra precautions when it decides to go after a bear.
And pound for pound, the bite of a jaguar is the most powerful of the big cats, even more than that of a tiger and a lion.
Although a silverback gorilla is very fast, quite strong, and has a longer arm span, it is unlikely that a silverback could defeat the much larger and faster grizzly bear in a fair fight. The one advantage that a Silverback might have is in the enormous strength of its muscles.
A hippo would win a fight against a polar bear.
There's no way that the hippo, one of the most powerful, aggressive animals in the world, sits there and takes that damage. Instead, the hippo needs one or two bites to incapacitate the polar bear.
A hippo wins easily. It would take some cuts but a bear has little chance of killing it. First off a hippo more than triple the size of a polar bear. Polar bears don't share habitats with anything as big as a hippo, or nothing the bear would consider a meal.
A bear would win a fight against a lion. Bears have the advantage in just about every aspect, from size to offensive capabilities. The only time that a lion would win is if it managed to sneak up and ambush a bear, leaping onto it and biting into its head with such power that it shattered the skill.
While jaguars are considered to have a very powerful bite (some say the most powerful bite pound-for-pound of any big cat) and are faster than tigers, tigers are larger and stronger overall than jaguars.
Jaguars have the most powerful bite out of all the other big cats. Using their bite strength and powerful teeth, they can take down prey three to four times their own weight like caimans and tapirs, South America's largest animal.
A shark would win a fight against a bear. Although a polar bear might be the best match out of any bear for a shark, it would still lose. It doesn't have the toolkit needed to slay a creature so much larger, faster, and deadlier than it.
An elephant would beat a bear in a fight. Even though we have granted this hypothetical bear the best features of all the various species, the fact remains that they cannot do enough damage to kill an adult elephant.
Bear cubs often fall prey to tigers, wolves, cougars, and coyotes. Tigers, wolves, cougars, bobcats, coyotes, and humans eat bears, but these predators only focus on bear cubs rather than adult bears. The adult bears are too aggressive and dangerous to prey on – obviously a reason they are at the top of the food chain.
Bears will also occasionally kill wolves as Joslin (1966), and Pimlott et al. (1969) reported in Ontario, Canada. In both instances, black bears were responsible for the deaths of individual wolves. According to Joslin (1966), a black bear killed a female wolf protecting her pups at a den site.
If the two were hitting each other with their claws, it's likely the brown bear would have the advantage as their claws are more adapted to swiping. If a battle between grizzlies and polar bears turned into a wrestling match, the advantage could swing to polar bears.
Elephants and rhinos are the animals most likely to kill lions. The humble porcupine is a threat to mighty lions.
Overall Strongest: Tiger
It's the strongest wild cat in terms of strength and size. The largest cat is also a member of the Panthera genus and beats the lion in terms of strength, speed, aggression, fighting skills, and coordination. Its large size is a factor that makes it the strongest cat in the world.