Is there a Maritial Art where I would be able to beat a Silverback Gorilla in unarmed combat?

No, the Silverback Gorilla would beat you to powder

No, the Silverback Gorilla would beat you to powder

No. No martial art will make it possible to last even moments against a silverback.

Gorilla's are gentle giants, chimpanzees are the ones you got to watch out for.

Why is it always silverback gorillas? I mean, I've seen variations of this same exact question several times, and it's always the silverbacks... Why not a big orangutan, or chimpanzee, or even a gorilla that isn't as established as a silverback yet? With how many times this question is asked, I'm surprised nobody has thought to develop a system to accommodate this... maybe something like Pongi Dae Kwon Do?

One of the common themes that links most serial killers and socio-paths is that they start off taking out their sick fantasies on animals. yah know - torturing cats, disembowelling dogs, threatening to beat up silver back gorillas, that sort of thing

Only Rex Kwon Do can help you attain that goal.