In reality, they're shy and retiring unless threatened. They're also strict vegetarians.
Leaves are the main course, with side dishes of fruits, seeds, and bark.
Imagine digesting all that. Gorillas rarely fight over food because leafy plants are plentiful. Unlike most primates, gorillas spend most of their time on the ground. At nearly 500 pounds, male gorillas are twice as big as females. A huge size difference like this is a sign that one male mates with many females.