Essay On The Gorilla

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When examining the skull of the gorilla, it is established that there are many similarities and differences between their skulls and the skulls of the spider monkey and humans. With the gorilla skull that was on display many of the skull characteristics were pronounced. When observing the lower jaw or mandible of the gorilla it is shown that the molar teeth are very similar to that of a human. However, the front teeth are more outward and significantly larger compared to humans, especially the canine teeth which are used as a defense mechanism. Unlike humans, the gorilla contains a sagittal crest that connects the mandible to the skull and creates a stronger jaw for the gorilla for the grinding of their food. The nasal passage of the gorilla …show more content…

The main characteristic that the gorilla’s parietal skull has that the spider monkey and human skull do not have is the sagittal crest. As stated above, the sagittal crest is the point at which the muscle from the mandible is connected and creates a stronger jaw. This sagittal crest creates the large protruding part of the skull for the gorilla which can be seen with the naked eye. Unlike humans, the parietal skull of the gorilla is not very “flexible”, meaning that when the brain develops it cannot expand as much as the human brain can because of this lack of flexibility. Finally, the orbital bones of the gorilla are very protruding when related to the spider monkey and human skull. The gorillas have a large brow ridge over the eyes. This protruding bone is to protect the eyes from branches and other debris that the gorillas might face in the wild. Like the spider monkeys, the gorillas have a very large and wide eye sockets and, as a result, the gorillas have slightly larger eyes. The skull of the Western Lowland gorilla is very extraordinary and shares many characteristics with the human and spider monkey

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