A regular irritation was always that for many of the animals, their staple diet consisted in part of peanut shells and plastic bags tossed in for them by visitors.
此外，遊客拋進動物柵欄的花生殼、塑膠袋更是動物們的「家常便飯」。諸多有意無意的疏失，造成許多令人遺憾的事件。