Gorila Video shows a large male silverback gorilla on the attack. He first knocks gently on the door to another gorillas chamber. When no one answers, he flings .\rbr\rbr\rbr\rbrColo the Worlds Oldest & First Captive Born Gorilla is 59 Birthday: The 2011 Guinness World Records book shows that Colo is the worlds oldest gorilla at 53 .\rbr\rbrGorilla This video shows gorilla fights. The second fight begins when a large silverback grabbed and attacked a young gorilla. Although female gorillas are .\rbr\rbr Shows a longer version of this video This video shows the large canine teeth and huge mouth and jaw muscles .