The zoo had improvised a traditional way of making paper from mulberry trees in the northern city of Chiang Mai by using bamboo pulp that the pair of pandas could not digest, Prasertsak Buntrakoonpoontawee said.

• 泰国熊猫计划的负责人班特拉库彭塔威说，在一家位于泰国北部清迈市的动物园内生活着两只大熊猫，园内工作人员将当地传统的造纸工艺移植到它们的粪便中，只不过是把原料由以前的桑树换成了熊猫肠胃无法消化的竹浆。