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.
Bears can kill them. Big crocodiles can kill them. Much bigger animals can kill them like buffalo, gaur, rhinoceros, hippopotamus, and elephants. And of course, humans can kill gorillas if they're armed.
Leopards and crocodiles are large carnivores which may prey upon gorillas. Humans are the greatest threat to all gorilla populations.
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.
Ultimately, we believe the odds are in the gorilla's favor. However, alone and at night the lion will have a strong advantage. If the lion can get in close enough and score an accurate bite, he could end the fight before it even begins. However, a gorilla is a mighty foe with more stamina and fearsome strength.
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. If the human sees the gorilla first, the best the human could hope for is finding a nearby place to hide. When threatened, gorillas have viciously thrashed and mauled humans.
Mountain gorillas have been killed by humans using weapons but there's no single record of any human ever killing a mountain gorilla using bear hands. He can, but its certainly not assured. They've got a lower center of gravity than humans, which makes them more stable and a better fighter.
Apart from humans, gorillas don't really have enemies. 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.
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.
A crocodile would win a fight against a gorilla. Most of the fights would begin in or near water, and a gorilla doesn't stand a chance in that scenario. If a crocodile bit and dragged the gorilla into the water, then it's a simple victory. The two creatures might meet each other on land, though.
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.
So, it's best to just observe these formidable animals in their natural habitats from a safe distance. The polar bear would win a fight vs. a silverback gorilla, having a size, speed, and strength advantage.
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 of ending the fight in seconds.
A gorilla would win in a fight against an orangutan. Gorillas are far better fighters and far more capable of inflicting fatal trauma on enemies. An orangutan might escape a gorilla by climbing trees, but that is not going to defeat the gorilla.
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 the enormous strength of its muscles.
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. The grizzly is faster, but this will likely not matter as much beyond a possible initial charge.
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.
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.
There were numerous reports of tigers preying on both brown bears and Asiatic black bears, but the relationship, it seems, was not that simple; there were also reports of bears killing tigers.
Key Points. Elephants and rhinos are the animals most likely to kill lions. The humble porcupine is a threat to mighty lions. A crocodile is an animal that will attempt to prey on lions.