I didn't know that orangutans had abilities to communicate with each other using language. It is a pity that such smart animals are in danger of extinct, but there may be still hope. The friendship between Shoemaker and Inda and Asie warmed my heart. I'm still not sure about one thing. How do the orangutans and Shoemaker develop language skills by naming the objects?

オラウータンの頭はいいと知っていたが、どれほどのレベルなのか知らなかったので実験の様子を読めて楽しかった。