Predators. Black bears may become prey to mountain lions (Puma concolor), wolves (Canis lupus), coyotes (Canis latrans), bobcats (Lynx rufus), grizzly bears, humans, or other black bears. Cubs are especially vulnerable to predation by these other animals.
The grizzly bear has no natural enemies or predators in the wild. It is not really territorial, rarely fighting with other animals and tolerating fellow grizzlies, except during mating season.
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.
To scare the bear away, make loud noises by yelling, banging pots and pans or using an airhorn. Make yourself look as big as possible by waving your arms. If you are with someone else, stand close together with your arms raised above your head.
“What eats me”
Lions have few predators to fear other than humans. A very young or sickly lion might fall prey to hyenas. Cubs may be attacked and eaten by adult male lions. Lions are most threatened by humans who hunt them and encroach on their habitat.
The stocky, insulated body makes them overheat during chases and gives them poor turning ability. They cannot match the agility of specialized predators or potential prey.
Bears also dislike the strong scent of pine-based cleaners, but avoid using anything with a fresh, lemony or fruity smell. And never mix bleach and ammonia; the combination produces fumes that can be deadly to both people and bears.
Bears usually run from a dog because most bears have learned to associate dogs with people. However, a dog off leash may chase and harass the bear causing the bear to get angry and chase the dog. When dogs get scared they may run to their owner.
Grizzly Bears have 20 claws, several inches in length, one on each toe of their four feet. Silverback Gorillas have nails on their fingers and toes like humans. The grizzly would more than likely win in a fight against a Silverback gorilla.
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.
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.
Animals with no natural predators are called apex predators, because they sit at the top (or apex) of the food chain. The list is indefinite, but it includes lions, grizzly bears, crocodiles, giant constrictor snakes, wolves, sharks, electric eels, giant jellyfish, killer whales, polar bears, and arguably, humans.
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.
Bear Predators: Coyotes
Like bobcats, coyotes, without a doubt, are no match for bears. Coyotes can only threaten bear cubs, especially when they are in their numbers. They mostly go after bear cubs that are not well protected.
Stephen Herrero's book Bear Attacks: Their Causes and Avoidance, considered the definitive work by many authorities, says “human excrement/urine attracts bears and should not be near your campsite.” The National Park Service promotes that belief as well, adding that the salt in urine attracts wild animals (including ...
Air horns are an effective bear repellent. They are certainly loud enough to alert bears to your presence. Some campers like to fire off the air horn before they leave their tent in the morning to scare away any bears which might be at the campsite. If you see a bear, you can also use an air horn to scare a bear away.
Bears have better senses than crocodiles, and they are stronger overall than crocodiles. Also, bears are faster on land than crocodiles. Both creatures rely on their bites to finish off enemies.
While grizzly bears are dangerous, polar bears have a slight edge. For one, polar bears are bigger and have a stronger bite force. They are also more likely to attack humans on a whim. And they eat humans, even hunting them in some cases.
Bears can use powerful paw strikes, scratching from sharp claws, and tremendously powerful biting to kill enemies. Both are similar in their offensive competencies, but the bear is a lot stronger.
Polar bears, grizzly bears, black bears, and the Siberian tiger will kill and eat wolves. But it's a rare occurrence. Usually, the kills are competitive rather than predatory.
Like many large carnivores, wolves are generally afraid of humans and will avoid people, buildings, and roads if possible. The risk of wolves attacking or killing people is low. As with other wildlife, it is best not to feed wolves and to keep them at a respectful distance.