Going to Howletts was a fantastic source of research. Watching the gorillas move, capturing expressions and just being there. Watching the interaction of kids with the gorillas was also very valuable.
(http://www.amnh.org/nationalcenter/youngnaturalistawards/2009/JD.html) that Jennifers article describing facial expression and its relationship to gestures in Gorillas beneficial for the characteristic representation of Cornelius. As she describes meeting the Gorilla he sticks out his tongue as he bangs on the glass. his lips pulled back and his teeth exposed. He raises his arms and starts to clap. When meeting the Gorillas at Howletts Zoo they seemed to roll there arms around each other in some sort of dancing display
' l thought I have recorded many gestures before, I was intrigued by the pairing of a gesture with a facial expression. While Shana’s expression may have looked like a smile, it was actually a fear grimace, or bared-teeth display. Although Shana pairs his seemingly happy expression with a gesture that is an attention-getter, it soon becomes obvious to me that he fears the duck that is approaching him. Irving Stone wrote, “All of the character that is necessary to show can be done through the face … and perhaps the hands.” I had never realized how much one could learn from simple movements that most do not notice'.