This arrangement is not made to tease the animals, but rather so that as far as possible their feeding conditions should involve an element of challenge as in the wild, and so that their life should not be too monotonous.
其目的不是作弄猩猩，而是希望牠們取食的條件儘量能和野外一般，生活有一些挑戰，也不致於太單調。