The song features the music of Ohashi Takya's Arigatou, with lyrics written by the pair, known in the film and in reality as the Chopstick Brothers.
这首歌的旋律来自大桥卓弥的《谢谢》，词作者便是短片中的二人组，即现实中的“筷子兄弟”组合。
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Ohashi, a research fellow at the Japan Monkey Center, and colleague Tetsuro Matsuzawa observed the Bossou chimpanzees from July 2002 to March 2003 and then again from April to Sept. 2004.