Once the gate was opened, an active and playful sun bear, Natalie was the first who went to approached and sniffed to Bongkud. Through the Bongkud expression, she was so happy to get a new playmate again although Natalie’s body size was bigger than her. Bongkud try her best fought back and showed she has strength too. All of the strong claws and canines were showed up during the play fight. None of the sun bears showed any aggression and frustrated behaviour. Both of them spend a whole day for chasing, rolling, mock fight and climbing around together. It was a great integration!! They integrated well and seem to begin to understand and trusted each other better. Natalie shows the most dominance.