No animal can beat a grizzly bear in a 1 on 1 fight. Grizzlies are incredibly powerful and have sharp claws and teeth that make them formidable opponents. However, if you were to pit an elephant against the grizzly bear, then the elephant would likely win due to its sheer size and strength.
Predators. Adult polar bears have no natural predators except other polar bears. Cubs less than one year old sometimes are prey to wolves and other carnivores. Newborn cubs may be cannibalized by malnourished mothers or adult male polar bears.
In the battle of the grizzly bear vs tiger, a Siberian tiger would win a fight against a grizzly bear. The Siberian tiger is an ambush predator, and it's the only big cat that comes close to the grizzly bear in terms of size and power.
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.
Few instances of direct mortality to either species have been documented. Instances of wolves killing bears and bears killing wolves have been reported, but such events are rare and considered the exception. According to Mech (1981), wolves sometimes kill bears, but likely only young, old, or otherwise weakened bears.
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. A fully grown bull elephant would most likely smell or hear a bear coming long before it showed up.
The gorilla and grizzly have a relatively similar bite strength, but the bear's build makes it harder for a gorilla's bite to be equally as effective. The gorilla's biggest advantage is its spry movement, whereas the grizzly's primary advantage is its claws. The grizzly is larger, but the gorilla is stronger.
Among all bear species, both the grizzly bear and polar bear take the crown as the strongest. Weighing more than around 800 pounds — the maximum recorded size is twice that figure — an individual male grizzly is equivalent to around five humans in strength … and even more when enraged.
Put more bluntly, when polar bears and grizzly bears are both competing for food, its the polar bears that are more likely to walk away from conflict and leave the prize for grizzly bears. The bottom line: in a fight between a polar bear and grizzly bear, the grizzly bear reigns supreme.
The two species most often reported to prey upon rhinos – usually young ones – are lions in Africa and tigers in Asia. However, leopards, hyenas, wild dogs and Nile crocodiles are also known to kill African rhino calves on occasion. By far, though, people are rhinos' #1 enemy.
Predators. Carnivores (meat eaters) such as lions, hyenas, and crocodiles may prey upon young, sick, orphaned, or injured elephants. Humans are the greatest threat to all elephant populations.
Bear Predators: Tigers
A tiger will eat any large prey it can kill, including bears.
“Bears are naturally afraid of canids,” Hunt says. “Why? Because packs of coyotes can steal cubs.” The most common breed of bear dog is the Karelian bear dog, a black-and-white working dog that hails from the region between Finland and Russia called Karelia.
On land, the bear could possibly win a fight if it managed to flip over a crocodile and attack its underside. However, this fight would not be over quickly: the bear would need to do a lot of damage to finally kill the reptile.
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.
Strongest Bite: Saltwater Crocodile – Generates 3,700 Pounds of Force. The crocodile is the strongest animal in the world by bite.
Too Weak to Support Its Own Body Weight: The Jellyfish
Crystal jellies Aequorea victoria, are a bioluminescent hydrozoan jellyfish, or hydromedusa, that is found off the west coast of North America. Almost every living creature on the planet has at least the strength to support its own body and move around.
With the bear's massive body, superior muscle, surprising speed and evolutionary armory, there really isn't any way a gorilla wins the fight. Every attempt it makes would be thwarted by at least one of these factors.
Their sharp claws, long teeth, and quick reflexes make them excellent ambush hunters. If a tiger could get its teeth around a bear's jugular or on its spinal cord, it could quickly make short work of a smaller polar bear.
Polar Bear (Strongest Land-Based Carnivore)
Due to the Polar bear's superior size and strength, it is the world's largest and most powerful land carnivore. The polar bear would almost certainly kill the gorilla if the two ever met.
Elephant
In brute strength, elephants are the strongest mammals and the strongest land animals. African elephants can weigh up to 6,350kg and they can carry up to 9,000kg, the weight of 130 adult humans.
A rhino would win a fight against a grizzly bear.
Grizzly bears are tough animals. They're also far more aggressive than the average solitary rhino. In a fight to the death, though, the rhino would clearly recognize that the grizzly is a threat that needs to be frightened off or eliminated.
A hippo would win a fight against a polar bear.
Instead, the hippo needs one or two bites to incapacitate the polar bear. Its massive teeth would penetrate the bear's fur and skin, breaking bones and ripping into organs. In this rare case, speed on land would only matter at the beginning of the fight.