The only predator to prey on gorillas is the leopard. Walter Baumgärtel found the remains of several gorillas after they had been killed by leopards in the Virunga Volcanoes.
Predators. Leopards and crocodiles are large carnivores which may prey upon gorillas. Humans are the greatest threat to all gorilla populations.
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.
No, an unarmed human being could not beat a gorilla in a fight. Simply put, gorillas are far too strong for human beings to overcome.
A lion would almost certainly win in a fight against a gorilla. The reasoning should not be all that surprising. A lion will stalk and ambush a gorilla in the dense vegetation of their natural habitat by waiting until it's dark to have the edge. They have a good chance at ending the fight in seconds.
If a fight occurred between a hippo and a gorilla it is obvious that a hippo severely outmatches even the largest of gorillas and strongest gorillas. In a fight, a hippo can easily kill a gorilla by either charging through them or using its large mouth to take them out.
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.
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.
The strongest land animal in the world is the elephant. The typical Asian elephant has 100,000 muscles and tendons arranged along the length of the trunk, enabling it to lift almost 800 pounds.
An elephant would win in a fight against a gorilla. Gorillas are certainly powerful and smart animals, but they lack any definitive means of killing an elephant. Unless they happened upon an elephant lying down and managed to inflict severe bites to them, a gorilla simply would not stand a chance.
A gorilla would win a fight against a kangaroo.
The gorilla has the weight and power to overwhelm the lighter creature completely. It would use all its weight and power to topple the kangaroo in a bout of extreme violence.
The absolute unbeatable beast who took home the title for best fighter: the elephant. With a 74% win rate, it just eked out a win over the rhinoceros, who also received a 74% win rate. (Just a few extra tenths of a percent gave the elephant the top spot.)
Gorillas are the largest apes (not monkeys!) and the strongest primate, known for their impressive strength. These powerful animals weigh up to 200 kg, and can lift almost 2,000 kg – 10 times their body weight.
Certain reptiles such as chameleons and caterpillars are what are gorillas scared/afraid of. They are also afraid of water and will cross streams only if they can do so without getting wet, such as by crossing over fallen logs, and dislike rain.
A tiger would kill a gorilla in a fight. If a tiger managed to ambush a gorilla, the tiger would immediately kill it. Although the gorilla is strong, the fact is that it could not stop 600 pounds of charging muscle and teeth.
HUNTING AND TRADE
The commercial trade in bushmeat, which occurs throughout west and central Africa, is the biggest threat to gorillas today.
This isn't any ordinary microscopic organism. It's a tardigrade—the most 'indestructible' animal on Earth. Also called water bears, tardigrades can survive up to 30 years without food, live in volcanoes, and endure the vacuum of space.
What would it take to kill them all? A lot.
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.
Highly unlikely, if no firearms or tranquilizer guns are involved. A gorilla can reach speeds of 20 mph to 25 mph. In comparison, Usain Bolt's record in the 100-meter dash roughly translates into 23 mph (Bolt reaches peak speeds of around 27 mph—but still).
The silverbacks are in fact stronger than 20 adult humans combined as they can lift or throw up to 815 kgs while a well-trained man can only lift up to 400 kgs. Any adult gorilla can lift up to 450 kilograms, not with a body size that can go as high as 200kgs.
Gorillas have now been observed using crude weapons against humans. Wild gorillas have been seen using "weapons" for the first time, giving a new insight into how early man learned to use sticks and stones for fighting and hunting millions of years ago.
How hard can a gorilla punch? It is believed that a gorilla punch is strong enough to shatter your skull with one slam of its arm:/Between 1300 to 2700 pounds of force. Gorillas on (avg. 400 lbs) have a muscle mass density almost 4 times higher than the most heavily muscled powerful human you know.
When it comes to a tiger and a gorilla in a fight it would be a short fight. Tigers are bigger, stronger, and faster than a gorilla. The gorilla would be able to put up a fight and could injure the tiger if he was able to get a bite in, but that would be his only offense.