Upon its discovery, the Mountain Gorilla was thought to be very unintelligent among other anthropoids. Although the Mountain Gorilla has a small relatively small brain, it has about the mental capacity of an Orang-utan. Moutain Gorillas are slow to learn, but they can remember what they learnt. They are not as curious as the Chimpanzee and it lacks the persevereance in experiments but the mountain Gorilla is attentive. These animals evidently show greater individual variation in both character and intelligence than other anthropoids.
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